piatkow - 12:37 pm on Apr 14, 2008 (gmt 0)

Its over 30 years since my pre IT career required me to study contract law but IIRC as long as your son isn't entering into a credit agreement, and he has a suitable means of payment, then he can make a purchase. (Except for age restricted products of course).

I am not aware of any legal age restriction on domain ownership although your hosting service is perfectly entitled to make restrictions of its own.