You don't need to have a stable source of income before investing but somehow along the line, the stable income is still needed to maintain the steady cash flow that will continuously make you to accumulate more bitcoins because even as you invest within your discretionary income, if there is no steady cash flow it means your DCA will not be regular thereby it will try stagnate your accumulation process and the need to also have a stable income is so that you can remove the fear of market actions such as volatility but when you don't have a stable income source, at any slight changes in the market you will already start to shiver because it will look as if you don't have any back-up funds to ginger your morale during the time of constant market fluctuations.
Let's tell ourselves the truth. Having a steady flow of income plays a very important role in bitcoin investment, and this is the reason why investors can accumulate bitcoin. However, where there is no steady source of income, investors struggle to accumulate bitcoin because they need to meet daily demands. I think it is a necessity for investors to have a steady source of income, because for one to be able to accumulate bitcoin consistently without any challenges, there must be a steady source of income. Let us not sound as if every investor doesn't need a steady source of income to invest in bitcoin; it is possible that some may cope, but more income makes for better investment.
I don't know why we don't understand some certain things, stable income isn't the priority to start your bitcoin investment but your discretionary income. I know of people who are working and getting paid every month but don't have a discretionary income, isn't that a stable income. It's not ideal that you don't have a stable income for that reason prevent yourself from investing into bitcoin. As long as you have a source of income and a discretionary income, you can start investing into bitcoin, build and grow your bitcoin portfolio overtime and hodli.
I know of someone who is a truck driver, he supplies sand to people who wants to build. Sometimes, they call him to supply sand and sometimes, no one calls him. He makes more money during the dry season and during the raining season, he hardly see somone that needs his service. Since he understands the kind of business he is into, during the dry season he saves money for his upkeep throughout the rainy season so that he does not go hungry. Such person can still invest in bitcoin from his discretionary income after he has sorted out funds for his monthly expenses and upkeep during the rainy season because he will divide his discretionary income and spread it out into various week during the rainy season using DCA method why during the dry season he buys weekly whenever his discretionary income is available.
You can also front load your bitcoin investment when you have the capability to do that if you don't have a stable source of income with your discretionary income. Down here in my country, rainy season is almost three months or more. Proper cash inflow management matters a lot when you are investing in bitcoin and let your priority be to keep your bitcoin accumulation ongoing, consistently and persistently for 4-10 years and above.