Reverting back to a College Freshman

Grad school starts in less than a week, but does that mean I need to revert back to my college freshman days? Other people my age have kids and are doing adult activities, I on the other hand am reverting back to my 19 year old self...

Case in point. Last weekend we go to the Folk Festival. Am I excited about seeing the performers and hearing new music. Yeah, not so much. My first stop, the beer tent. I have a very low tolerance for alcohol. I really don't drink that often and I'm not a huge person, so any minor amount of alcohol will have an effect on me, especially if it is hard liquor. So, what does any normal girl do while she's drinking? That's right, smoke the cloves.

This very similar to my college freshman year. Every weekend was a beer fest and along with the beer fest came the cloves. Granted I'm not drinking nearly as much as I did in college, but what are other people my age doing? They are having kids. We are one of the few couples I know that don't have children.

So, the question that begs to be answered...am I reverting back to a 19 year old? Should I be growing up and doing the "grown up things?" And more importantly, can you still live my current drinking/smoking/traveling lifestyle and have kids. And if you can't, does having a baby somehow trump all of the other things that I so look forward to doing now? Answers....please!