I can relate to working in an ACed building. I used to move my vacation from summer to some cooler time just so I could spend the hottest days in a more comfortable place.
It's fine to treat a child like a child if they act like a child. But at least be honest with them. The "I want to be treated as an adult" tantrums some of the most defining features of a childish person. That also includes doing things because adults do it.
Also, page 12 top panel looks nice. And page 20 is just harsh.