Not having a steady source of income shouldn't be a hindrance for investing in bitcoin so from you are saying, even if one has a discretionary income so long as they don't have steady source of income they can't invest in bitcoin. This is wrong, because one can be investing in bitcoin using discretionary income while working to stabilise there income. So to me the most important thing is if the person has a discretionary income to invest with and as time goes by , stabilise his income
As long as someone always has discretionary income, it is not a must that he or she must have a steady source of income before starting a Bitcoin investment. There are some jobs that are part time or contract-based, such as skilled trades. It is very possible that contracts may not come often, but once he or she receives a contract, they may earn a significant profit from it.
People in this situation can invest in Bitcoin with their discretionary income after all necessary expenses and emergency funds have been taken care of. For example, tradespeople like plumbers may not receive money weekly or monthly, but once they complete a job and get paid, they can also invest in Bitcoin using their discretionary income.So, it is not absolutely necessary for a person to have a steady source of income before starting a Bitcoin investment.