Hi and Welcome to OSM!
I see you created here new type:site relation for the school. Why we need this?

Also, I don't think type:site is the right tagging for this case. Site type is useful for cases where one big amenity is spread across many separated buildings (like big univercity campus, for example). I don't see any benefits of having relation for many unconnected kindergardens. Do you?
We can discuss this, if you wish, here, on forum or in the community telegram group.