Yeah, a good friend of mine has very wealthy parents. Her father still works because he loves it. Her mother works a lot for charity and loves it.
'Even wealthy families send their kids out to work at 16 (part time) and almost everyone in college has a part time or summer job, just to get experience, even if they don't need the money.'
This. There's a real shock here, 'They can't work and study!' whereas there, if you don't work and study, you seriously dent your chances of getting a good FT job after study because the employers want to see experience of some sort. And many, many, may people work FT and study either PT or FT there, it's very, very common and even very good unis are able to accommodate such students, and want to. My sister got her master's whilst working FT, my cousin a PhD, several I worked with went to law school whilst working FT, all sorts.
VERY common to re-train in your 40s or even 50s and no one says, 'Nope, you're too old, you'll never get a job in that field.'