Oh... Well its funny you mention perfect pitch. As I understand that's something you need to learn before 5-6 years old or you will never have it. However relative pitch can be learned at any age.

You remind me of something I read this year: perfect pitch can be developed easily for children. It is possible for adults too - just that they need to pump in more effort

cryotosensei

I'm sure starting young helps but I think it is something that can be learned at any age. 

Drawing with both hands

I think you must start from a young age. I was born a left-hander but my father trained me to use my right hand. So I use chopsticks with my left but write with my right