Re:Why not extend this to adults? (Score 1)

If they ask your age, tell them you're under 13. But I agree, it shouldn't just apply to children.

If you tell them you're under 13, you might have to prove that you have gotten your parents permission by having them register with a credit card number. Now you've given them your real address! Of course, the site won't mind, because now it can sell your real address to a direct marketing company.