Two technical questions regarding sims' age and the Science Center

Ah, thanks again! I actually remembered now that the SV town center contains one lot with three functional buildings on it, one of them functioning as school with the mod in question. All of the options other than the science center work correctly in my game.

There's still much I don't know about this game. Sometimes it surprises me with having a lot on a lot and a building on it (three bulldozing steps). Maybe, that's where the beautiful vista function is tied to.