There was talk in the 1980's of licensing the fairly new field of Industrial Design. California made legislative moves to do just that. We were doing a lot of things that skirted the edges of engineering and frankly some that crossed it. Some states argued that Architects are licensed, and they don't actually engineer a building, so why shouldn't we carry the same requirement with everything from consumer and medical products to museums. We quickly changed the mission of the IDSA from more of a fraternal organization to something akin to the ASE. It became both an advocacy group and membership required a 4 year BA or BS in ID and 2 years experience, a 4 year degree in a related field such as engineering or architecture and 4 years experience, or 10 years experience in the field, making a quasi licensing association. This quieted the call for state boards as we all quickly joined to keep the government out of our profession. Eventually state membership requirements faded away too and we are pretty much free to kill you at will, although we do get engineering approval to cover our butts legally when appropriate.
I cannot imagine having to be licensed to do nails or cut hair. That's absurd.