Contrary to the opinion of almost every person who already has a government required license to work, many of the licenses required by the State of Iowa are not only unnecessary, their primary purpose seems to be to protect existing licensees against competition, rather than to protect the public.
I am sure that certain state licensing requirements do help to ensure the safety and quality of the service provided, but in almost all cases, private certification programs could serve the same purpose without involving the use of force by government, and without giving government backed protection to existing licensees. A great example of this is Certified Financial Planners (CFPs). Financial professionals who want to hold themselves to a higher standard can get this private certification, and then advertise that fact. The same is true of Realtors.
I’m sure that many licensed professionals also have various college degrees, private certifications, and other professional credentials. In many cases, these private credentials should be sufficient. Those who have them should advertise the fact, and not ask government to prohibit others from competing against them.