Ji FU quoted The Ethics of Liberty by Murray Rothbard
Applying our theory to parents and children, this means that a parent does not have the right to aggress against his children, "but also" that the parent should not have a "legal obligation" to feed, clothe or educate his children, since such obligations would entail positive acts of coerced upon the parent and depriving the parent of his rights.
And all of a sudden I was glad that Rothbard never had kids.