FYI this isn't the worst housing system, by the way. Archeage was FAR worse than this. Not saying that FFXIV gets excused for the housing ward system, but a good housing system that scales on a level of a massive MMO RPG is something that is very hard to implement. Fully instanced housing is sort of the easy solution, but many people wouldn't even use that system unless there is a strong mechanical reason to do so. People at least RP using the wards so that is something.