While it obviously makes sense for medical doctors, attorneys, dentists, and many other professions to be licensed and regulated by State or Federal authorities, unfortunately, extending this sort of licensing requirement to all sorts of professions isn't good at all. There are jobs such as florists, hair dressers, plumbers, and many, many other various professions that are required to be licensed or regulated by State authorities. It would be one thing, indeed, if such licensing was setup along the lines of basically providing a State-sanctioned certificate that could be added to that worker's credentials, but rather, these regulations are deliberately written in a restrictive manner that precludes people working in a given profession unless they are licensed, no matter their skill-set and no matter their experience, unless they take and pass State mandated tests and coursework, they can't legally work.
Many people might think that all of this licensing and regulation is a good thing, because it assures the people utilizing such services of their safety, and indicates that these license holders are competent. That may well be true, but often these regulations and license requirements have not been initiated at a grass roots level, that is, by the people, themselves, in an effort to do exactly that, so as to protect and to assure themselves of a minimal competency from these professionals, but rather these regulations and license requirements are typically instigated and initiated from the people already in that industry, as a way to raise the entry fee for others that wish to be a beautician or similar, and therefore as a barrier erected to preclude other people from creating additional competition in their given industry. The reason that certain cosmetologists desire to see their profession regulated, is so that they can make more money by charging higher prices, which is basically because they have less competitors, because of these license regulations, fees, and time needed to commit to such.
In any profession, in which there is a monetary cost for entry, in addition to time commitments to be trained in such a profession, as well as educational requirements, than the more that these things cost in money and in time, the less people, overall, in general, that will apply and go through the entire exercise to get that professional degree, because they do not have access to the money needed, nor the time commitment requirement, nor are able to readily achieve the educational requirements. While this makes logical sense for medical doctors and lawyers, that need to have high competency as a proper service to the general public, this is not really necessary for hair dressers or bartenders, or many other professions.
The upshot of all these licensing requirements, that cost money and time, in addition to some of them having unnecessary restrictions that disqualifies people that do not have a Bachelor's degree or are not United States citizens or those convicted of crimes, is that the least amongst us, the people that are trying to be part of the American dream but lack a good educational background, money, connections, and a wealth of opportunities, are precluded from working at a profession that they may well be quite good at, simply because they don't have the money or time, and not because they are incompetent or incapable. This type of exclusion is wrong, it often isn't even well meaning, but rather is done purposefully to protect those that have from those that want to have.