Everyone, rich or poor, can invest, if they have discretionary money or a source of discreet income. From my point of view, there may not be a person whose monthly income is less than $200. Maybe there is, but I do not know that. If you can set aside $50 discreet money monthly from this $200, then I think you are still eligible for investment. The amounts mentioned may be more or less, but I think more than $20 discreet money per month is eligible for investment. Although the amount is small, but in the long run that money can be more than the expectation of a person.
So I would say, do not give importance to the amount of income or your position for investment. Rather, give more importance to how much discreet money you can set aside. If you do not have discreet money after meeting your daily needs, then I will say with great sadness that you are not yet eligible for investment. You should look for a discreet source of income and keep the enthusiasm for investment alive. So that you can jump into investing as soon as you find a discreet source of income.
So many poor people lack patience they want it quick infact so quick that's why many of them can't sacrifice years of accumulating wealth through Bitcoin to elevate their status from poor to rich class in the future Bitcoin has given everyone the opportunity to get richer in the future but some still don't understand, I think many rich folks do that's why you see them buying at every given time necessary, some poor people still think Bitcoin is for the rich cause they feel they can't buy with a similar amount the rich use in accumulating, but then they can accumulate gradually as little as they can for many years and still be rich in the future, patience is just the sacrifice they have to make to build a big portfolio that would change their status from poor to rich, it's not something very difficult but with determination they can achieve it.