I guess it depends on what kind of childhood you got.
Personally, while my childhood was ****, it was a hell of a lot better than my adulthood so far. I'm not even 30 and I compromised my back, developed insomnia, and have no money to my name.
I mean, for me, my childhood was pretty average, but one thing I hated is the fact that I had WAY more fears back then than I do now. Not that they have gone completely, but them being reduced is something I am glad for. I also developed insomnia of sorts, but I realized that I work better at night than at daytime, and it appears to be something common for a lot of artists. I have gotten a lot of pain, especially on my hands and back as well, but that is to be expected, and while Carpal Tunnel scared the hell out of me, I kind of found of a solution with shock therapy and not forcing myself too much.
Money will always be a struggle, but in my childhood incidentally, I learned pretty early to save, even though at points it would suddenly vanish and I would have no idea where my childhood savings went. Right now, despite having temptation to buy things for myself like I couldn't do back in the day like games and videogame merch I want, as painful as it is for me to let something go, much later I realize it was a good choice, and maybe later on I might be able to get the thing I desire by my own accord and my own effort. That is also pretty rewarding, more than having to wait to get money on your birthday or Christmas, though when you get it anyway, it is still highly appreciated.