Oh you’re correct. It’s just that it didn’t define them as much.
My sister, who has always been hip (to this day), was into discos at the formative age. She transitioned pretty well to ‘80s rad stuff as a post-college young adult, but it really isn’t her defining period.
“it didn’t define them as much... it really isn’t her defining period”
Then there are people who sorta tune out during what is supposed to be their formative years, and therefore are defined more by what happened in other generations. This doesn’t work for current events and such, but for entertainment surely. It’s very common, for instance, to grow up with music, movies, tv and books from 20 years ago, since people from 20 years ago are now in charge of music, movies, tv, and books and their nostalgia rubs off on you.
Take me, again, who feels a certain nostalgia for stuff from the ages of about 5 to 14, but who tuned out of what was contemporarily popular as a teenager in favor of older stuff. If ever I go to a high school reunion they’ll probably be playing Eminem and Creed, or somesuch godawful crud, instead of what I listened to when I was in high school.
Such are the vagaries of generationhood.