Nah, they don’t usually cut keys inhouse, except maybe like at a huge university campus or the Pentagon. I think it’s more like how a personal car often has a dealer decal* where a squad car or electrical utility repair van never does.
Management also probably doesn’t want every Walgreens clerk or bank teller who has a problem with a lock calling the number on the key to arrange for a service call.
*Not your car. Mine, either.
The toilet seats? there’s little in a house that’s easier to clean than a toilet seat.
I guess i eventually replaced all the toilets in the house, including the seats. But i don’t think I’ve ever replaced just a toilet seat.
One sample–I bought one house, decades ago–and the toilet seats were weird squishy ones that didn’t seem very easy to clean thoroughly, with heat-welded seams and such that would trap nastiness.
But I didn’t want to have the mental image of the guy who owned the house for twenty years before me seated on the throne every time I used the bathroom.
Totally irrational, but there it is.
Yeah, i hate the squishy ones, and would replace those. But i lived here years before i replaced any of the toilets, and never gave a second thought to them having been sat on by other people. The toilets in public parts of the house get used by friends and contractors, too. 
Some people are a LOT squickier than others about that stuff.
I recall threads where a surprising number of people reported they never used a toilet away from home and arranged their life to never be farther from home than they could return to before needing to pee again.
Color me gobsmacked at the time.
I did say it is totally irrational, didn’t I?
Fortunately I don’t fear public toilets, but I can understand why many would be icked out enough to not use them, thereby suffering a lifetime of planning everything around getting home for bathroom duties.