@Mayflower : I know it took a while for you to get used to it on guys, but it's very widespread now, FYI:
forums dot thebump dot com
So you wouldn't stop a son doing it, would you, if he wanted to?
When I get a son, he can when he is out of school as an adult. With homosexuality and everything, I'd raise a son like men were expected in my generation. Then when he is an adult, he will be a man and an earring won't change that. Young men/teens don't need to wear earring/earrings.