[_progger_]

> If you're 20, generalize.

Did you mean 'study an a uni'?

> If you're 25, specialize.

Did you mean 'graduate and find your first job'?

[xauronx]

Even guys in university choose a thing and go "I'm a java back end developer, that's what I do", and spend all of their time on that. Most curricula cover a wide variety of languages but that doesn't really teach you enough to mean anything.