“Would you go back to being a kid again?”
I think that implies retaining a certain level of awareness that you were an adult so that you could have an appreciation for the time travel.
The only reason I think I’d want to be a kid again is to see all the people that are gone today. I’m well past middle age, and there are fewer and fewer people left from my childhood, and the togetherness I experienced with family was something I didn’t really appreciate until it stopped happening - along with my failure to ask what their lives were like and learn history from their viewpoint. That’s what I remember most. Not the toys, the idle days at school or with friends. It’s Holidays. Bored out of my skull with people I didn’t appreciate, but yet being glad they were there. A lot of them aren’t anymore.
Otherwise being a kid kinda sucked. Your life revolves around what everyone else wants you to do and you can’t really say no, fuckit, I’m calling in sick today. All the stupid drama at schools. Your freedom (pre-internet) was held by your parent(s) willingness to get their car keys or if you had any money and a bicycle. I didn’t like school. I didn’t fit in. I would not go back.
Yeah, it’s better to be an adult in most ways. (I say that with the caveat that I understand some may have had easy childhoods or have very difficult adult lives. Meh, this turned into a bigger post than I expected. I guess I’ll leave it anyway).