@crinrictIt's nice that there's at least the possibility to add a shoe rack instead of a sign, but I personally find the shoe racks weird for a few different reasons.
There are two types of shoe racks, one with stereotypical female shoes and one with stereotypical male shoes, there's none with both stereotypically female shoes and stereotypically male shoes on the same rack, and there's no empty one (which would be the best option imo, because then there wouldn't be shoes that don't look like what my sims would be wearing).
The shoe racks also have a variety of shoes, with a bunch of party shoes and formal shoes, which is something most people don't store in the hallway, in my experience from being in people's homes here in Sweden. Here people store only everyday shoes (which varies over the year, winter boots are put away in the summer, summer shoes are put away in the winter, and so on) in the hallway, while shoes for special occasions (party shoes, formal shoes etc) are stored in the wardrobe or suchlike.
Another thing is that the shoe racks look weirdly small (narrow). I feel like most IRL shoe racks fit eight pairs of shoes, while the ones in TS4 only fit six pairs of shoes. I feel like only a person who lives alone would buy a shoe rack that fits six pairs of shoes.
Edit: Forgot to mention. The reason why I think it's weird that the shoe rules are in a pack inspired by Japan is that it makes the base game feel even more American, since not only Japanese people take off their shoes indoors.