Investment and business are all good to make you wealthy, but we need to fight for a source of income first before we invest in Bitcoin because Bitcoin is unpredictable.
It is difficult to get one source of income, let alone a source of income that is good and viable enough to carry investments. I think that mostly for Nigerians trying to invest in Bitcoin would have to be made from a place of sacrifice because only few Nigerians enjoyed the privilege of having sufficient amount of money that accommodates their lives need and then some for investments the rest of us have to struggle our way into investment by making sacrifices and budget cuts when necessary. You do not need more sources of income to start investing you just need to learn how to make more sacrifices.
I agree with you on the aspect of making sacrifices, because bitcoin investment is worth it which is why those guys that know the importance of holding bitcoin will try as much as they can just to own a little portion in thier portfolio regardless to thier financial situation, yet they will be struggling in different means just to make sure that there bitcoin investment will remain untouched until they find a more reliable source of income then they will be able to put everything in the right place. However, having a source of income is very important whether stable or not whichever way you use to get money will be considered as a source of income.