I don't think age is a factor in whether someone will like this show - it just depends on musical and dramatic taste, I think. I'm over 50 and I love the score and loved the New York Spring Awakening. But, regarding Hairspray - another what could perhaps be termed a "young" show - it bored me senseless. So, you like or hate something according to what appeals to you personally regardless of age/generation, etc.
THEATRE 2020: CURTAINS**** LET'S HEAR IT FOR THE GIRLS***** WICKED***** KEITH RAMSAY TAKING NOTES WITH EDWARD SECKERSON***** KAYLEIGH MCKNIGHT CONCERT***** RAGS***** ON MCQUILLAN'S HILL** DEAR EVAN HANSEN***** THE JURY***