Guitar Courses Reviewed: Most Aren't Worth A Lick!

how do i convince my dad on these songs that i want to play on guitar?

i play the electric guitar and my dad is a really strong religious
dude im great with christianity but my dad wont let me play metallica, guns N roses, and ect… im not listening to them
i just want to play them……HOW DO I CONVINCE HIM

start off by playing "Nothing Else Matters" by Metallica, then slowly, and i do mean slowly, build ur way up, maybe play november rain