Heating in the school!

It’s been driving me absolutely nuts that I can’t set the heat in the school. My poor sims have to wear their winter gear to class sticking out like sore thumbs while their classmates wear their everyday clothes. I don’t want to manipulate the weather or make my sims resistant to heat or cold because I prefer to play the most realistic way as well as avoid cheats and mods. Is there a trick to this that I don’t know about? Or is there something the sims team can do to fix this issue?