If you're under 21, you should generally hit on less than 17 unless the dealer is showing a bust card. Wait, what are we talking about here?

Oh, right. If you're under 21 years of age: 

1. You may not carry a container of any type of alcohol inside a vehicle unless you're accompanied by a parent or responsible adult—as specified by law, not by you—and said container is unopened.
2. If you are caught with alcohol in your vehicle, it can be impounded. Your vehicle, not the alcohol—well, the alcohol, too.
3. This includes stuff like Robitussin. What? There's alcohol in this? Sure is. Many medications—cough syrups, mouthwash, etc.—contain traces of alcohol. If you take any of these in excess, you could run up your BAC and be arrested for driving under the influence. Seriously, how bad your cold possibly be? And there's nothing more humiliating than being pulled over for tripping on Listerine.
4. If you're convicted of driving with a blood alcohol content (BAC) of 0.02% or higher or are under the influence of drugs, your driving privilege will be taken away from you for six months. It'll temporarily be given to someone who drinks a lot of iced tea and is always in bed before 10:00PM. If you think turning down an offer of alcohol from one of your peers is embarrassing, try asking your mom to drive you to DUI class.