[valgaze]

This is an interesting payments case b/c with kiddos in the United States you need to deal with the Children's Online Privacy Act (ie the reason for the "are you 13 years or older" checkbox question)

One firm that's was trying to do kid payments was Virtual Piggy (now Oink): http://www.oink.com

[derefr]

> the reason for the "are you 13 years or older" checkbox question

I thought all the age-of-13 stuff, specifically, was because you can't legally enter yourself into a contract when you're younger than 13. Which is to say, you can't accept EULAs or Terms of Service (or you can, but they'll have no legal force.)

[Buge]

It's COPPA. https://en.wikipedia.org/wiki/Children%27s_Online_Privacy_Pr...

Some people even consider COPPA to be a form of censorship. It creates such a huge legal burden on websites if they allow < 13 year olds, that most websites have to ban them, thus limiting their right to speech.

[mikeash]

Obviously it depends on the jurisdiction, but typically minors cannot enter legally binding contracts. Some form of source:

http://www.lawchek.com/Library1/_books/contract/qanda/legala...

One interesting feature I wasn't aware of is that this does not generally apply to "necessities" or employment contracts.