Here's a surprising fact from a economics paper I came across:
Here are some examples of jobs that need government permission:
These extreme examples show the absurdity of government licensing. It only blur the lines of competition by increasing the costs of entry, which raises the price of goods for all consumers. Pay attention and you'll notice that the major advocates of licensing are those who already have it. There's no reason to think that market competition can't give us the information we need on our professionals. I think there is a huge demand for cheaper, lower quality professional work that is kept out of many professional jobs. In fact, I can't think of any job where I want government certification, not even public education (and I'm already certified).