Most of the casinos need a credit card, and some take SSN, driver's licence, etc, so players have to be old enough just to sign up to play. They check cash out requests against personal details to prevent someone cashing out by fraud. If a teenager used their parents' details, then they'd have real explaining to do and face prosecution!I'm not really familiar with online gambling rules but is there anything like age verification when logging into these sites? I think there might be a problem if a user registers as a 18-year old, wins a jackpot then it turns that they are much younger than that. That would be a big problem, or wouldn't it be so?