Requirements for licenses and regulations of that sort almost always end up entrenching existing businesses more than they help consumers. I'm about as pro regulation as one can get but I'm always leery toward suggestions that licensing is what it would take for Software Engineering to be recognized as a 'real discipline'

NPR has some fantastic reporting on licensing in the beauty industry and how it not only entrenches existing players but turned out to be really harmful to African American communities: https://www.npr.org/sections/money/2012/06/22/155596305/epis...