All children (6) in my family were "strongly encouraged" (required) to play instruments and were offered the option to continue after one year. I (and one brother) stayed with it for years and through multiple instruments. My siblings teased, ostracized, and tried to make me feel bad because I was sharp, had a good memory, never needed to study, seemed to just pick up stuff by osmosis, etc.
Oh well, they all had the chance.
http://ed.ted.com/lessons/how-playing-an-instrument-benefits-your-brain-anita-collins
I'd be interested in brain studies on how singing affects the brain. Perhaps they exist. I think I'll go look that up right now. I really do love to sing and people say I look completely different when I'm singing.