1. Age has no bearing on musical taste. My parents are older than me and they like the Counting Crows and Enya.
2. Metal is shit music.
3. Being able to play an instrument has no bearing on musical taste. Maybe you think being able to sweep pick gives you an appreciation of metal. Satriani is a great guitarist, but he's unlistenable, and metal is STILL SHIT MUSIC.
4. METAL IS SHIT MUSIC.
P.s. guitar major over here - metal is terrible, derivative, and hasn't changed since the early 80's apart from distortion values and content.
I put the STD in STUD, and all I need is U!