I think it's all about drinking responsibly. If you are going to drink at any age make sure you stay put or have a designated driver. Kids are drinking at 18 already. When I was in college the legal age was 18 and we were totally unresponsible! I sometimes wonder how I'm still here because yes I drank and drove more than once.
But having a DD wasn't talked about much back then and now it's the norm. Be careful!