My ds is now 7 years old and this was an argument I had with my dad on numerous occasions. He doesnt like boys having ears pierced. I on the other hand think its very cute :) Ill let him decide when he is older though.
My son wanted his ear pierced when he was 8 he begged & begged for weeks, so we let him...2 weeks later he took it out.. He's 15 now and doesn't have any piercings. Thank God. If it had been something permanent like a Tattoo we would have said no.