What a coincident to see this manga, after seeing this from another Vtuber, on the same day. XD
I must be one of those odd people who do not want to go back to being a kid.
Being an adult, I have more freedom to do what I like and have money to spend on what I want. I have decent job, salary isn't high, but enough for me to live. As a kid, I constantly have to worry about how much homework I'm going to get (American schools are more relaxing in this regard, until college years), and that I must do well on my tests. And then, I have to ask parents for permission to buy certain things.
Overall, being an adult with a decent job is much more relaxing than being a kid with so much pressure and restrictions. Just how I feel.