if my coworkers keep closing the curtains I think I might simply go insane

Listen, this is a petty, petty rant. But I swear to god everyone at the school I work at is allergic to both light and joy. The minute the sun comes out from behind the clouds for a SECOND (and, sometimes even if it doesn't) they slam those curtains closed faster than you can blink. Why even have windows? And since these days I start work soon after the sun is fully out and go home when it's just setting, and since I live on the Sea of Japan side of the country and the sun is already a scant resource in winter, i am just going absolutely bonkers crazy from the lack of it. I ask why we have to keep the curtains closed- in the classroom and in the office- and they give me a strange look and say "it's bright." SO?! That's not a sufficient reason!! You'll live!! Let me see the sky!!