Hi!
I agree with the "no shoes" sign, that is quite american-centric. I think an ability to set shoes vs no shoes on the front door would be a good option. Its not a huge issue tho as I think we can just hide the sign.
As for the mischevious child thing I disagree. I was a bit of a rebel when I was younger, and I was scolded a lot, both for wearing outdoor shoes inside the school and for running outside in white socks. Many children can come running inside and be on their way to bring snow or dirt in the whole house if their parents dont stop them.
Its often easy to become lazy if youre already put your shoes on (especially winter boots) and you forgot your keys or something and then you try to walk on your tippy toes to get it even though that does not help. Maybe they should make sims with the lazy trait not always take their shoes off.
Im norwegian, so the cultural norms on why we take off our shoes may be different? We dont wear shoes inside at homes (we have shoe racks and mats by the front door) which is culturally because of the weather making our shoes quite dirty. In schools, offices, gyms, we wear loafers,(indoor shoes in gyms) or socks. Also in some non-city restaurants, hotels or libraries and other common areas. Even at parties we take our shoes off, and if someone were to wear high heels at a party they would bring them with (not normal to wear heels at a normal house party though).
A funny thing I noticed. If you search wearing shoes inside in norwegian everything that comes up is "why do americans wear shoes inside?"