Minors/purchases/legal contracts

Can a store be forced to accept a return of an item purchased by a minor since, as far as I know, minors cannot enter into legal contracts? Is a regular retail purchase considered a contract of some sort?

If the store does need to accept such a refund, is there a time limit for doing so?

I remember seeing something like this on a show like “The People’s Court” where the defendant had a child (a minor) who purchased a game system and then claimed the seller needed to accept a return of the system since his minor child wasn’t legally allowed to purchase it. The ruling was based on something else, so I never did hear if that was a valid point of law or not.

I should have searched on this before posting.

According to wikipedia:

I tried to read the reference associated with this, but I wasn’t seeing how it applied and so I’m just taking wiki’s answer on this one. It makes sense to me.

Can a mod kindly close this? I found my answer and I doubt it will generate much discussion.