old hippie my son's example is not an isolated case at all.
A young JW recently (in the last 5 years) experienced so much pressure to pioneer and to give up university that he abandoned his studies after completing 2 years and began pioneering. He has since been forced to stop pioneering and spend longer hours working in home maintenance.
My daughter decided to pursue a course in beauty therapy. This was described as frivolous and 2 pioneer elder would very blatantly ask when she was going to start pioneering. The pressure made her feel very very guilty until at and a low point, soon after, she signed up.
A relative of mine who is very intelligent and has done very well at school has had insistant pressure put on him to stay clear of further education and is now pioneering and training as a plumber.
3 female youngsters (a teenager and 2 twenty somethings) that I know personally and who have left JWS are, only after leaving, now set on a university education (no pressure or encouragement from me to do so but I was very glad to hear that once they'd released themselves from JW thinking they decided to give university a go).
edit:
But years ago when we visited a mostly elderly Florida congregation I was quite surprised to find that a couple of youths were at university - a real eye opener to me.
This was quite different to my own experiences (which seem to concur mostly with what Barbara says) and makes me wonder if congregations that are close to Bethels around the world and that have a few resident bethelites are more inclined to view further education suspiciously and place more pressure on youths?