It has to do with the idea of natural rights. You are your own property, so you should have the right to do with yourself as you please, without interference from others, as long as you do not interfere with the similar exercise of others. Along those lines, every law ascribes to property rights. Murder is a violation of property rights.
Health care and education do not fit into the picture in that sense, though political theory is very academic, no matter the paradigm. Some programs that do those things are inevitable. I would suggest that they be structured towards efficiency, so as to limit the damage done insofar as is possible. The structure of education in the United States is terribly inefficient, as children spend primary and secondary school learning nothing of particular value to actually holding a job in the world.
You'll forgive me my honesty, but it just seems to me Libertarianism has cleverly found a way to elevate and enshrine property rights as something natural and above debate by conflating it with human rights, whereby they can protect their own privilege whilst arguing other comparable societal obligations, that aren't immediately in their self-interest like property laws are, as immoral. As you can probably tell, I'm not all that knowledgeable about libertarianism given the absolute absence of any appeal it holds to me, but this is the first time I've read an identifying Libertarian acknowledging there would also have to be other forms of social welfare under it.