You must have a source of income if you must succeed in your holdings.
This is not required, but it is quite significant. Some people are such good investment managers that they don't have the sense of spending a portion of their investment to solve difficulties even when they don't have a source of income. It is really difficult, and only a few people can withstand the stress. Having a source of income makes investing easier because you don't have to worry about or refer to your portfolio when you need money, making it easier to succeed in your investment.
It is preferable to keep an emergency reserve separate from your investing capital for unexpected financial emergencies.
For the few years I have been into cryptocurrency, I have discovered that you can't hold till the right time if your don't have a source of income. Just imagine that you have a pressing basic needs like feeding or rent, then you don't have money to finance it, you will be forced to sell your Bitcoin at a loss if you don't have a source of income outside your holdings.
If you fail to implement an emergency fund strategy and are in an urgent need of financial assistance to address an urgent emergencies it is acceptable to lend money from your investment with the purpose of replacing the money as soon as possible.
Most people that have sold their Bitcoin holdings at a loss or at an average price actually have the patience but don't have the knowledge of how to hold, because a good holder must be aware that he needs a source of income for him to be able to consolidate to his holdings.
I believe it is simply a lack of self-discipline on the part of many investors, and it appears that they invest blindly without a well-drafted investment plan. Also, I believe they lack proper understanding of the bitcoin concept, since they are not hesitant about selling at any small financial obstacle. Having a source of income makes investing easier, and without one, you will be breaking a major rule of investing by not investing an amount you can afford to lose, which is a bad investment habit.