Verified answer

Unlike the previous answer the ESRB cares greatly about who is buying what games. That's why most major retailers in Canada and the US are committed to the ESRB's Committment To Parents Code.

In general the code states that a retailer will not sell/ rent M or AO rated games to persons under the age of 17 without permission from a parent or guardian and in most cases with photo ID that proves they are of age to purchase the game.

The retailers make sure the parent/guardian/purchaser (over 17) understands why the game is rated as it is before the purchase so there are no surprises when the game gets home to be played.

With a game rated T - they are suggested for kids 13+ and generally anyone under the age of 13 would be with a parent of guardian when buying games anyways. So if his mom said he could and she is with him the person would tell her how the game is rated, why it's rated as such and ask if the parent was alright with that content before purchasing the game.

In general, the ESRB probably doesn't care who buys the games, because like most big corps., they like money. The commercial is a public service announcement it would seem. It's letting you know that if you're under a certain age, the stores cannot sell you a T rated game.