without money, there is no way that you can invest in bitcoin, so the best thing is for anyone to have a job so that when you start from there, because there is no other means that will be accepted when you have a means of earning, but when you don't have a means they how do you even invest so one of the best things to start with is for you to get a job then you will notice that that way you will be able to use the dca method easily because without funds there i no way you can do the dca.
And it depends on the kind of income you are getting, because when you are investing good money same way you will get good return so the money that is going in to buy matters a lot. After all, when you don't invest well then the returns will be small when you are not finacially stable then it will be better to figue things out before investing.
Getting a job is not the main problem but getting a job that can give you a discretionary income at the end after deducting funds for your basic needs and monthly expenses. So, investing in bitcoin goes beyond getting a means of income because some persons can have a means of income but it cannot take care of their monthly expenses and needs or they have an income that can only take care of their monthly expenses and basic expenses. These category of people will not be able to invest into bitcoin only if they want to be gambling with their money to take care of themselves.
Your discretionary income is what you are to figure out how much from it that you can use to buy bitcoin every week regularly with DCA for 4-10 years and above, no matter how small it is. What is most important is for you to be consistent and persistent with your ongoing DCA in order to build your portfolio gradually. As you are investing, you can look for other means of income in order to boost up your DCA amount so that you can reach your bitcoin target faster.