I agree with the OP. I’ve long held that there should be an XSmall sized POS. And when they came out with the Upwell Structures, my first thought is “How is MEDIUM the smallest?”
What this game really needs is a personal house, and it doesn’t have that. It has a 3 story apartment building, a 10 story apartment building, and a 100 story apartment building. Even the smallest one doesn’t make sense for a small family, much less an individual.
They were on the right track with the Depots, but those are like XXXS. They have no shield/you cannot dock in them, not even a Frigate or even a Pod. I get that they don’t want mass spam in HiSec, but all they’d need to do is impose some reasonable restrictions on that (like the old POS rules where you had to have operator licenses and were restricted from lore systems or systems above 0.8 or so…)
I’d personally like PERSONAL structures, so you don’t have to join a corp/create a 1 man corp and deal with permission slots and the like. So an Xtra-Small sized structure that can only accept Cruiser and below, or hell, Frigate and below ships to dock there, has a size limit on the ships and cargo, can only do very basic reprocessing or construction (maybe you have one mod slot and that’s it), etc. Something very limited but workable for a single pilot doing small things solo.
After that, a Small sized structure would be good for those 2-5 man Corps who don’t need even the Medium sized structures.
This is Eve. This is The Sandbox. If “player housing” (which is what all this structure/POS stuff ultimately is) is only for Medium sized and larger, or you are shunted to what is effectively “public housing”, then it’s not much of a sandbox.
Not only that, the tech is now in place for at least the Small size, and probably the XS as well, and CCP has long realized this is a known problem. There’s absolutely zero reason to not fill that gap at this point.