I suppose it depends on what you're definition of sword is. If it involves intricate restrictions on guard and blade length, tang and constraints on material quality, then yeah, they probably didn't own swords. To me, and many others, if it looks like a sword, works like a sword and smells like a sword, it's a sword. That is to say, if a commoner had constructed a functional, sword-like object from "lesser" materials, then what would it be? A large knife? I would consider the distinction between the two arbitrary.