I like the idea of doing what you love. As long as you can live like that, it is the best thing for a person. The only caveat: at 20 years old is not difficult

I like the idea of doing what you love. As long as you can live like that, it is the best thing for a person. The only caveat: at 20 years old is not difficult at all to have a relation with potential to transform into a (happy) marriage. However women are, in general, smart enough not to marry someone that cannot provide a decent living for the potential children, and that tolerance for low income partners is decreasing with age. This is just an information to consider, not to discourage you.