I don't think he ever called for a "license-free" world he simply pointed out that skilled people who don't have them shouldn't be prohibited from working in a

I don't think he ever called for a "license-free" world he simply pointed out that skilled people who don't have them shouldn't be prohibited from working in a field if someone wants to hire them. I don't endorse a world without licenses either but I'd point out that the world got by just fine without them for centuries using apprenticeships and if my doctor retired and told me "I trained this person and he's who I'd suggest you go to" I'd take that recommendation a lot more seriously than I'd take a medical license.