I don't think is nice encouraging someone to invest on Bitcoin using his 30% of salary to invest on Bitcoin because there is every possibility that the investor could ran into trouble if the reserve fund is not enough to sustain him till he receives his next salary, so perhaps in as much as is advisable to take advantage of the Bitcoin price right now but shouldn't get overwhelmed by investing aggressively because is better to invest with the money we can easily afford without being tampered than investing with all the money we have and within a short while you end up selling it do to the lact of money to take care of other needs, however is only those that have structured one of there portfolio for Lump suming I could easily advise to take advantage of the market because they have already taken all the measures before now.
There is no fixed percentage that is universal as regarding what to invest in Bitcoin. It is always to each his own; you are expected to work out what you will be comfortable to leave in Bitcoin, an amount that will not stop you from living your normal life. There are some people people whose 10% of their income is enough for their needs and they will still have surplus from it. Those are the people at the upper echelon of society that are making decent amount of money that are way above what they can possibly spend. This set of people can even afford to invest 50% of their income into Bitcoin.
How much an investor invests is entirely up to the investor. The amount of money that the investor feels is right to invest, he will invest that amount of Bitcoin. Just because my financial situation is one and another investor's financial situation is different, my financial situation cannot be considered someone else's financial situation. If the investor invests in DCA method then regardless of the amount he invests he must invest consistently. If you invest consistently, even if you have to invest a relatively small amount of money, the investment amount will be strong enough at one time. But as you said that if a person spends 10% of his income on his family, it is not the same for everyone. Someone may be living in the same society but his monthly income is less than others and he is getting more than 10%. The amount of money that is needed in the management of the family will be needed. Investment should not be left with any imperfection at all.
The investor will consistently invest the amount of money that is left at the end of the month. Maybe the investor may think that what will happen if I invest this small amount of money regularly, those who think like this must make a long-term plan and calculate your investment. I hope that your idea about investment will change.
If I fall into this category of people, I will definitely put at least 50% of my income into Bitcoin because I don't know of any better asset class to invest in and save for retirement. My plan is to build a good portfolio that I will pass on to heirs, so saving my funds in Bitcoin is similar to the retirement savings and generational wealth preservation.
If you feel safe spending 10% of your income and investing the remaining 90%, you can invest 90% of your income. But no matter how you invest, be sure not to sell your investment after investing. The next generation will get Bitcoin if you can deliver Bitcoin to them properly. When a person thinks about his investments for the next generation, there is no doubt that his plans are long-term. Before your investment reaches the next generation, you should try to grow the investment. If you find that you are investing 50 percent of your income and after investing 50% you have to sell your investment when financial need arises then you can reduce your investment amount at that time. Because you don't need to invest so much money that you have to sell the investment later.
Keep investing a fixed amount of income consistently so that you don't have to sell your investment later.
In another dimension, there are people whose income are so low that it will take over 50% to as high as 70% of their income to meet their basic needs. These class of people can invest as low as 10% of their income and they will not be breaking any rule. It is always ideal to properly calculate your cashflow to be able properly know what to put into Bitcoin to be able to have the much needed peace for long term investment.
Everyone's income is not equal, different people earn different amounts every month, depending on their job position. Everyone is living according to their needs considering the location. If everyone can live according to their needs then everyone will be satisfied with the investment based on their income. If my income is less then naturally I will have less amount of money to invest. We may never take such a decision to invest that our income is low and there is some money left for household expenses at the end of the month but we are borrowing money from others to invest. In one month we borrow money to invest a large amount but in the next month we have to repay that loan and if we pay the loan in the next month but that person will not be in a position to invest in that month. Therefore, based on the income, that amount of money should be invested regularly, there is no need to invest more amount by borrowing from others or in any other way, as much as you can afford.
If you wait until you have a comfortable emergency fund that will be enough for you to take care of things when the need arises, you won't be able to invest, to me, I don't think that there is any amount that we should have before investing, beside an investor should not think of being alright financially before making investment move, the only aspect one should consider is how much that is coming in daily, weekly and monthly after this check, the money should be divided into a segment, the one for emergency stuff, other needs and the investment itself, with this idea one can start from somewhere and never think of withdrawing his or her investment when fully involved.
While it might be true, I also think an investor should be ready if things go wrong, cause given a case where he starts to invest and something unexpected happens at an early stage of investment, he might find himself in a difficult situation if his emergency funds and reserves are not well feed, what I prefer to advice is not to wait for your emergency funds to be ready to get all the cashflow done, just start but with very little and comfortable DCA that won't affect you at all like 5% and a minimal interval , then focus a bit more on building your emergency funds and reserves before you get more into DCA, this way if anything happens at an early stage dipping your hands I to your investment won't be an option cause you already have more savings than investment and you are well prepared this way.
I agree with you that an investor with a very comfortable DCA should remain consistent. The investor should enjoy his investment and the investment should never be a pressure for that investor. As long as the investor enjoys the investment he can continue to invest well but since the investor feels investment pressure he will not have full focus on the investment. I think investing will be stressful for the investor when the investor tries to invest more money than he can afford. This should be given importance to the investor so that he does not take too much pressure but invests according to his comfort and if he enjoys his investment then he can implement his long term plan with his investment.