Not to be dense, but I dont follow. I am wondering about why one house would be outside while another would be inside, or why one house could be off lot, one on lot by their bed, and yet another standing outside in the red, as well as the randomness of where their needs are when I load the house - when you said "If you make any changes in manage worlds (adding a household, editing a lot, playing a different household) when you play a household the sims will be standing in front of their lot and will not be at work or school."
I wanted to know if it mattered or not if I made changes in Willow Creek, will it affect Oasis Springs or some other neighborhood, or is it rolling new rng for the entire save file - in other words all houses in all neighborhoods or just the neighborhood I am currently working in? I cant find a pattern in how I expect my sims to be vs what they are on load. It seems like total rng and nothing I did before I left the house seems to matter much as in where they are and what their needs are. Like if I send them home, make sure they are all in the green and happy and when I come back its like I wasnt even there at all - the sims are unhappy, in the red and not where I left them - relationships aside, we know thats broken.