My wife was into metal/hard rock when she was younger. Her fave bands were Scorpions, Bon Jovi, Thunder, Triumph, Coney Hatch, Ratt, Cinderella, VH, Led Zep etc..
but these days it's mostly alternative stuff she likes, or Pink or MGMT or whatever..??
I think, that now she is a mother & wife, that maybe she thinks it's all a bit immature these days??
She doesn't like most of the stuff I'm into & sometimes cans me for it.
But, occasionally when we go for a day trip somewhere I will make sure to bring something different to listen to in the car, she tends to like the odd thing every now & then.
On the other hand our four-year-old sons loves Maiden, Def Leppard, Twisted Sister and whatever else I play him

..but this concerns me when he gets older. As I remember I hated most of the music my father listened to! So hopefully he doesn't turn into some faggy dance DJ idiot!