Yep. I’m almost 40 and still ride shopping carts through the parking lot. I climb on stuff, I jump around, I sit on the bare floor. People look at me funny and I smile and wave. I get visibly excited for things like riding the subway (not from an area with good public transit), or figuring out how novel things I see work. It’s fun. Life -should- be fun. Being a “mature adult” is boring and I don’t want to do it just because some crusty old shit says I should.

Social norms and stigmas for inconsequential behavior are silly. Are you happy? Are you hurting anyone? If yes and no respectively, you win life!