I get your point but also I'm a pedantic Lemming, so I want to point out that in the middle-ages, castle would purposefully build uneven steps. People familiar with the castle would soon get used to them and they'd be no bother, but an attacker running upwards will surely trip. And they'll trip because of the stairs. Or will it be their own fault for not looking at each individual step to give your body the information it needs?

Just rhetorical exercise, I don't actually care at all about one side or the other.

(An added stair fact, round staircases would ascend in a clockwise manner, so that right-handed defenders would have the advantage over right-handed attackers whilst fighting in the stairs.)

Well next time pay closer attention yourself, they are either firmly mounted, or they are designed to be very noticeable or untribable, like with backs on them.

You haven’t noticed it, because of the codes and standards, but of course negligence can always happen, like someone moving a bench (which shouldn’t be movable in a place with children) and put it where it shouldn’t be.

Also, you think your daycare is gonna admit they moved something and let your kid trip? Nah, they’ll blame the kid instead of wanting their business to look bad. Anyone who’s been around kids know have a very good memory as well, so when they trip over something, it probably wasn’t there 5 minutes ago as well.