For me, if you’re in the city states its the merchants or nobles who have access to this. Yes psionics are common but psionic artifice is rare and equivalent to spellcaster services on other worlds.
Villages and outposts might or might not have access to psionic tech, depending on the personnel there.
Exceptions would be Saragar, where psionic tech is available to ordinary citizens in the city (albeit less as the ages wear on), Giustenal, where I can see Dregoth restricting Green Age psionic tech to his palace, templars and defilers, amd New Kurn, where I imagine psionic tech and magical improvements are quite common, but more for public good, not personal use.