Like jwilk, I don’t get why that should be relevant. I suppose if he’s at a bar with cops, ideally they would not let him drink if he is underage (this requires a fantasy world where cops apply the law equally to their friends). Which suggests he’s at least 21. This doesn’t really make a difference though, since he is intoxicated, and there’s no mention of whether he has a driver’s license. It also doesn’t state which country he’s in so maybe the legal drinking or driving age is different.
To be frank, neither of the questions seem particularly good or fully thought through.