I feel this so much, Misa. I also want to quit adulting.
Funnily enough I once found myself in almost exactly this same physical space once. It was the eve of my birthday and I was in a foreign city with some new friends. We bought some booze and found a nice spot to hang out underneath a train line. There was public workout equipment as well as little kid spring-rides like that one in the gif. I was way too big for them, but I still sat on one anyway. Drinking whiskey under foreign stars and wondering whether I was doing this adult thing properly. I still don't know, but I'll always remember that.