The only argument for government regulation of Interior Design that has some merit is the so called right to practice as a licensed professional. This is very well described in this article claiming interior designers should have dibs on government work that involves interior design- makes sense.
There are also some right to practice issues pertaining to firm ownership and licensed professionals as well as liability insurance and licensed professionals. I get that. I still do not think that government regulation of our profession is going to deregulate government regulation in other areas. If it is an unjust or unfair regulation work to change the system don’t add more regulation.
Good grief I am starting to sound like a libertarian…..ooooohhh noooooo