You are absolutely correct, it is not impossible for someone to invest in Bitcoin without a source of income I mean what they fuck are they using to accumulate if they don't have source of income.
Having a source of income and having a discretionary income are two different things you need to take not off, they are not the same, what is needed to invest in Bitcoin is a discretionary income not a source of income, because their are so many folks that have a source of income but still can't figure out their discretionary income, so if you have a source of income their no guarantee that such person will invest in Bitcoin and be successful if he can't sorts out his discretionary income from there.
Having a source of income is very important in taking care of yourself and your basic needs, but if you can't figure out your discretionary income and you went ahead and invest, you are just gambling, and the end product of such actions wouldn't be pleasing because selling it prematurely will be inevitable.
Nice, if I get you well, you are trying to point out the difference between just earning and actually having something left aside that is safe enough to put into Bitcoin(Discretionary income).. Your explanation is actually on point.. Without a solid source of income, one can not even dream of discretionary income. You can’t extract leftovers from an empty plate, so the source is the main driver, and discretionary is what flows after the basics are settled.
Let me try to break it down clearer. A source of income simply means the stream of money that keeps you afloat, like salary, business profit, or side hustle returns.. It is mostly guaranteed or semi guaranteed inflow that takes care of rent, food, transport, health, and other obligations.. While discretionary income on the other hand is what comes after the bills have been handled.. So, before you starts talking about Bitcoin or any kind of investment, the base structure source of income must be strong enough to sustain life..
And yes, discretionary income should be the only funds used for investing, especially in something like Bitcoin.. Because if you use money that is supposed to cover rent, school fees, or medical bills, you will always be forced to sell prematurely once life demands it.. That is where most people mess up, they invest what they cannot afford to lose, and when pressure comes, they panic sell at the wrong time. But if the money is truly discretionary, then you can sit on Bitcoin longer, survive the storms, and allow time to proof itself. This is the difference between someone gambling blindly and someone investing with patience..