I can see both (all?) sides of this:
- As a society we ought to be forgiving of harmless youthful indiscretions
- As a business you shouldn't have to give second chances to people who blatantly defraud you
- There is a big can of worms when it comes to doing business with minors on the internet. I don't think there's a solution as easy as "well when they're 18, let them log into their account and update their age to acknowledge that they were using the service as a minor" or "just let people open multiple accounts (with wildly different ages) under their name."