Small goblin type creatures are actually common and everywhere. Probably dependent on like where you live. People in cities live in disbelief of this thing because the grounds all toxic, the humans in there get sick and die so of course like non human creatures cant coinhabit urban areas. But like if you understand what a healthy environment is for something that is non human ud be able to see that there just always skittering around and stuff amongst us. There just tiny and stuff too so they like shuffle around and stuff.