My wife and I are 47 and love it. Our teenage kids enjoyed it when we watched it with them recently. My dad, a boomer, actually doesn’t care all that much for it. It happens to be a good story irrespective of when you were a child or young adult. Shrug.
I'm not sure what you're trying to say here - there's nothing wrong with enjoying it, there's nothing wierd about younger people enjoying it and that still doesn't really change the fact that movie targets nostalgia of a certain demografic. Considering it's success, it does that very well.
who? readers of a novel?