You are correct that sometimes if you are just buying bitcoin regularly, you might not miss the extra money that you are putting into bitcoin, and after many years, the seemingly small amounts add up to a lot of value that you put in, and hopefully the value that you put in has either retained its value equal to other possible places that you could have invested it or even better if the value that you put in has gone up in value.. and going up in value has tended to be the case in bitcoin and seems that there are pretty decently high odds that the value will continue to go up in bitcoin.. so long as you are not overly anxious in regards to the timeline.
Another thing could be that you have a somewhat erratic cashflow, and you realize that you tend to have between $10 to $100 per week that you could invest into bitcoin, but some weeks the cashflow is very tight and other weeks you have some thing (goods or services) that you feel that you need to buy in a timely manner.. so you have discretion regarding whether to invest every single week.. and maybe while you continue to be somewhat focused on building the size of your BTC stash, you consciously make those kinds of allocation decisions on a weekly basis.. but as your stash gets larger and larger and larger with the passage of time (hopefully), then you might decide that you only need (or want) to make those allocation decisions every two weeks or maybe once a month.
Indeed I sometimes never pass extra money into bitcoin I think that is considered unnecessary money that I need right so I put it in bitcoin it is much better than storing it in a place or in fiat, after many years this is of course there must be incremental start of my portfolio will be adding more regularly because it's a higher chance than the others I'd even be pretty optimistic on Bitcoin.
That's what I have to face with anxiety seeing the market go down, of course it will be a little nervous, but I try to hold it in.
This is still a consideration where when cash flow is uncertain I have to be prepared with a smaller allocation every week or maybe skip and place once a month, sometimes any costs we don't expect, for example buying needed goods, services , maintenance will also take more money, we don't expect it, so if that happens, for example, this week and the money for the allocation of bitcoins runs out, then I skip buying bitcoins in that month, but when there are problems with small fees, I always force myself to buy bitcoins, even if it's small with $10 the important thing is that the accumulation must continue at least once a month.
I don't disagree with any of this, but it is might be good to point out that someone who is new to investing might be in a very good position to allocate all of his/her investing to bitcoin, because s/he does not have any other investment.. and maybe s/he had been living with his/her parents, and just starting to work on building financial independence, so in that sense, when someone is starting to invest, there is not necessarily any need to diversify for the mere sake of diversification.. Fuck that nonsense. There is nothing wrong with starting out with one investment (which could be bitcoin), and then working towards diversification once the one investment builds up in value.. Of course, I am not suggesting 100% bitcoin, because there should always be an emergency fund and a contemplation of cashflow versus expenses in order to know how much can be invested into bitcoin, and bitcoin may well end up being the ONLY investment that someone starting into building his/her investment portfolio might have.
But beginners won't take this as a risk, maybe what they know is bullish, what the media or other people hear, but when they put all their money in bitcoin without longer learning, they will get caught up in their greed and difficulties, but that's how I understand it beginners who want to start investing in bitcoin must start small even if they don't have other assets but at least for the beginning they understand in their experience if everyone feels that they understand they can increase their value higher with the money they have.
I cannot disagree with any of this, yet I will still say that if you have a monthly paycheck, you are likely not buying all your monthly expenses for the whole month (especially something like food and transportation costs), even though you might have some expenses that are due on a monthly basis, so you can choose how much to allocate to BTC, and let's say that you have $2k per month coming in, and you have around $1k in known costs such as housing, food, transportation and entertainment, so you have a pretty decent idea about your budget and that you have an extra $1k that you can choose to invest. Depending on where you are at in your bitcoin investment/allocation journey, you still might want to consider dividing whatever is your extra income into weekly parts... and yeah for sure you do not have to invest all of that right away, and maybe you divide some of it as DCA and some of it is held for buying on dips and some goes into replenish or build your cash emergency funds, and maybe you want to make sure that buy $50 per week of bitcoin no matter what, but you don't really want to spend the whole remainder of the $800, so you save that for buying on dips, other investments or even to make sure that you do not have extra expenses for the remainder of the month, but then once the new paycheck comes in, then you have an ability to have another $1k that is available, so any of the $800 from the earlier month could be spent towards the end of the month.. and my main point, is that you should feel that you have a lot of discretion, including the discretion to buy all of your BTC allowance with the whole $1k at the beginning of the month..
Maybe every expense we can manage and far in advance have determined how much for one month is allocated for our needs including what you mentioned, but from all of that there must be some left over and it will be included in bitcoin as their planning for long term investment and for example if they have discipline in their finances $1000 in one month it should be enough however it should be good enough.
But everyone is different, the same as myself here, there is still an allocation for bitcoins every week or every month, I myself prefer that every week it will process faster than monthly.
Once we can still manage a good budget and don't change our attitude in our lifestyle, we can do whatever we want, including investing in bitcoin every week.