Could Sims 4 have more neighborhoods in worlds?

Regarding semi-open neighborhoods, I always had a question. After reading about the subject I understood that it is possible but that they do not do it because maybe you have a restaurant in the neighborhood and that will ruin things but ... Why not just open houses and parks? those would be great. The only thing I complained about when the sims 4 came out was this characteristic, I am not interested in the open world but if I would have liked the open neighborhoods ...