I'll start with two Non-Cooking ones.
I have one friend who loved to play the piano. She was very good at it. Enough so that she was sent away to a special school ... where she was trashed. I knew her at the time, and she was not expecting to become a virtuoso concert pianist. She knew she'd have to make a living, and already had her sites set on a teaching (deaf education) career. But this instructor stomped on her desire to play for decades, even just for self-entertainment.
Another was an artist. Similar circumstances. Went to art school and was trashed. Now he has a good position, and in recent years tried again. We look at what he does, and realize he was just ahead of his time.
Both friends fell back on good, steady jobs, which, in the long run, they probably needed to do.
But, that said, why crush someone so far down that they stop trying entirely?
I have friends and sisters who just gave up on cooking because their husbands were fussy eaters. I mean REALLY fussy. A fussy eater spouse creates fussy eater children. Why bother?
People who squinch your creativity and talents to make themselves superior ... they are out there anyway, and you're vulnerable when you're young. The two friends I mentioned are enjoying their God-given talents now. A few of my sibs and friends who gave up on cooking when they were young (let's see, I should make red sauce from scratch when everyone wants Prego?), started enjoying it again when children left the nest or after widowhood or divorce.