But yes, anyone can invest through any method, can invest with any source of income. But it is better to invest by deciding which one will be good for his portfolio. Because if a person invests today and has to sell it after 2 days, it will never be good for him.
I think that you are wrong here brother, am talking about the highlighted words in your write up, you don't invest with any source of income as you claimed, that's not the best way to invest in bitcoin, because you can't be investing money meant for your basic needs, investment in bitcoin should only be done from our discretionary income, money left after all basic needs has been taken care of, because it's a money you can afford to lose, unlike any source of income as you claim.