I find it dumb sometimes. But in all actuallity 90% of 18yr olds are not responsible enough to consume alcohol and then have to find a way home.
I was told this by a friend...
Ok at 16yrs old what is your most prized possesion....99% of you would of said your cars.
At 18yrs Old What is your most prized posssesion....90% would say your car.
At 21 what is your most prized possesion...by this time you more than likely have a home and have a stable job, and have almost completed higher education if you chose to do so.
So at 16-19 or so years of age your most prized possesion is your car...you will take it any where at any cost to show friends...even if you are drunk.