Growing up?

So even though I have a birthday every year, it is the little moments that I FEEL like I have aged. For example, this summer one of my best friends and I decide we need a short vacation; so, do we do to Cedar Point? Wisconsin Dells? Nope, we decide there would be nothing better than visiting wineries and sitting on the beach. And this is great! It really was a fantastic trip. But, I am pretty sure the thought of this kind of trip would not even have entered my mind ten, or maybe even five years ago. I mean, in college, I went to Disney World for Spring Break.
The other things I have recently noticed occurred on my training activities for a half marathon (also makes me feel old, I mean who actually needs to TRAIN for runs besides old people):
*On a run, I spotted the discarded carcass of a cicada and I resisted the urge to put it in my pocket to save for use later.
*On a bike ride, I saw a raccoon cross the street and climb a small tree. I did not pull over and try to pet the treed raccoon or even see how close I could get without acquiring rabies.

My only consolation are a few moments that I hope are keeping me young in spirit:
*I still refuse to ride my bike with proper athletic footwear- i am all about the flip flops.
*During a lunch break this week, after giving a short presentation, I went for a walk around a nearby neighborhood, took off my shoes and ran barefoot down the street a while to burn off steam before returning to finish my work day.

My fear is that one day, I will fail to simple joys from the weight of living life responsibly. "The trick is growing up without growing old." ~Casey Stengel.