...Then just invest on Bitcoin money that you don’t have special allocation on it so that you will keep your finances normal even if a financial problem arise. As already pointed out by JJG, people frequently invest all their money for the sake of profit even though it’s allocated for something important.
A salary earner who invests all their money into Bitcoin for the sake of profits is not a real investor, the person is a trader trying to double his income with the idea of Bitcoin investment but it's a wrong move that would backfire since Bitcoin is a long-term investment opportunity, I mean that the person would be forced to sell at some point especially if he's one who earns on a monthly basis. There's a reason why Bitcoin investment is best done with discretionary funds, cause at that point you've already separated the funds meant to essential expenses from that meant for investment, but going in to the market with all his salary for the month especially if he's yet to meet his target or invest for a decade or atleast one complete circle, would force him to withdraw from his portfolio to solve his essential needs.
Surely I have several time proclaimed that investment timelines should be 4-10 years or longer, and then hopefully some kind of a long term commitment to holding the bitcoin that transitions the person into some forms of sustainable withdraw whether price-based sustainable withdrawal and/or time-based sustainable withdrawal.
Many times people will in either invest in bitcoin with some kind of consumption target, and then other times, they might not really give thoughts to ways that they might be able to attempt to sustainably withdraw from their bitcoin stash rather than depleting the principle
It is difficult to necessarily set goals for others, even if sometimes it might seem that their goal is short-sighted if they are seeming to overly deplete their principle without valid reasons such as age and/or health.