We tried that in TX a few years ago and it was a disaster! The younger folk aren't sufficiently matured enough to handle the booze!
"The younger folk aren't sufficiently mature[d enough] to handle the booze!"
Well, in much of human history there were no drinking age limits. Somehow the world did not come to the end. In those days youngsters used to start drinking earlier, and learned how to manage it and hold their liquor at correspondingly earlier age, too. Probably, it is the cultural message: "drink, but don't get drunk".
Yeah, they can fight our wars, get married, be sued, be tried as adult, enter contracts, vote, but they can't have a beer. This is absurd.