I occasionally like to watch builders on YouTube. A number of times I've noticed them creating the smallest bathroom imaginable. For example, a showerhead right over the toilet, and then completely omitting the sink (with the reasoning that the sims can use the kitchen sink), so the room is probably 2x1 at best. I just can't help imagining myself showering right by the toilet while trying to get clean, and water getting on everything else... ugh! I enjoy doing tiny builds myself, but I could never do this to my sims. I would cut space elsewhere before I do this.... actually, I would never do this. ☺️