Unfortunately, my impression here is based on general experience and observation; there isn't a specific document that contains the libertarian view.
But in general, a lot of people who describe themselves either as libertarian, conservative, or pro-small government are opposed to welfare with near-religious fervor, but are likely unaware of the issue of occupational licensing and (in some cases) basically indifferent to charter schools or education related issues. It's just the interesting observation that even though there are numerous types of bad government interference, it's one specific one that generates ire. This suggests more of a political objection (I don't like those people!) than an ideological one (this action is inconsistent with a belief system I hold).
Ideologically, libertarians should oppose all of these things, probably in proportion to the inefficiencies they represent. As that's often not the case, it indicates irrationality.
a lot of people who describe themselves either as libertarian, conservative, or pro-small government are opposed to welfare with near-religious fervor, but are likely unaware of the issue of occupational licensing
First, you're no longer talking about libertarians but about a much, much larger group of people, the vast majority of whom neither are, nor consider themselves to be, libertarian. So, already, you've essentially changed the subject.
Second, lack of awareness is not irrational. On the contrary, ignorance is rational, for reasons explained by Jam...
It looks like, this month, I get to be the one to start the quotes thread.