Just wanted to step in and clarify the "Higher Education" MO witnesses have. In print and most talks, they encourage to not pursue education more than is necessary (not banning it), so they don't like the idea of an 18 year old staying on campus under worldly influence, but they recognize that sometimes schooling is necessary beyond the mandated. The interpretation and enforcement is of course not universal as many JW ideas aren't. Service is of course pushed first as others stated and trying to offer yourself up full-time as a goal. I've known plenty of elder's kids that went to college (myself included) and their fathers weren't removed. I think much of it depends on the enforcement of "the rules" in your area and who you know. A couple of those kids are elders themselves now, but their fathers were highly respected in the inner circle. You will find some old timers still touting the "no college" mantra, but that is far from the norm now.
For what it's worth, I'm born-in PIMO.