Someone once mentioned "Leave it nicer than you found it" as a life philosophy, maybe in relation to Japan? I'm not sure anymore.
I've taken to that, like when going for a forest walk, even if I pick up literally one tiny plastic wrapper, that's still leaving the forest better than I found it. Of course, pristine is pristine, but if there is trash, go for that good feeling and consider an easy thing to do that would improve the situation by any amount!
A high school English teacher used this passage to impress upon us this same philosophy of "leave it nicer than you found it" (in particular, I remember him telling us that our parents leave us in his care and he saw it as his job to "return us sharper than we were received") and it's one of those rare moments that made such a deep impression on me I remember it often even decades later.
Kind of true for codebase too
Though I've never questioned why that wasn't the case in primary or tertiary education here, so maybe it's also not that normal for us. It's somewhere between annoying and a punishment, not seen as taking care of your own stuff, maybe that's different in Japan / elsewhere in general.
At work I feel weird about cleaning personnel, as though we consultants are above vacuuming the place every once in a while and such (and they leave wiped desks dirtier than they found them, typically wiping my clean-to-the-eye desk with a dusty rag).
I've never heard of this in US public schools.