It’s a little more interesting than this even. Your brain knows the stair riser heights after 2-3 steps, so individual stairs can be different riser heights, 125-200mm (5-8”). Each riser can’t be more than 3mm different in an individual stair. Not uncommon for your upper stairs to be slightly different from the bottom if there’s a landing.
So those people do consciously need to remember step 15 is different or they can trip. The rest would be pretty normal.
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.
This situation would be more where it was placed if it wasn’t mounted. Probably not a good place if it’s right outside an exit for example.
I mean at the same time we also have very strict building codes and are told to not place stuff where it creates tripping hazards.
In a flight of stairs, if even one step is off 1/8 of an inch or 3mm, it can cause someone to trip. The steps would be very valid to blame, so circumstances matter too.
So just longer “camp” work? Some people work for 3 months and get a month off.
I knew a landscaper who would work for the 6 months you can and then all winter would go and stay on the mountains. The company he worked for only needed to keep a couple guys for snow clearing, so it worked perfectly.
Pumps and motors do mess with electronics though.
A grinder can easily remove that.