My 14yr old brother asked me to buy him some headphones like my HD595 for his birthday since he's got some generic brand that he uses for gaming and stuff on his computer. I said no because IMO they're a bit too hardcore and he should start off with a classic and work his way up.
So I bought him a new pair of Koss Porta Pro headphones. They were the first headphones I bought and the sound was sublime from them so they'll easily do him just fine.
I think it's a superb start for headphone ownership and everyone should own these headphones at one point. there's a reason they're still being sold 27 YEARS on with lifetime warranty!
If you're looking to upgrade your generic phones then definitely check these out, you WILL be surprised at how good they are