Parents don't magically owe their children goods simply by virtue of their existence. Rights are not claims upon other people's resources, they are boundaries against aggression. Children have the right to not be starved, beaten, or blocked from receiving help. If parents refuse to provide, they forfeit guardianship to others who will.
OK, I'm not sure whether you're answering yes, or no.
Again, the question is: Do
parents have a positive obligation to feed, clothe, or educate their child?
Saying
Parents don't magically owe their children goods simply by virtue of their existence. Rights are not claims upon other people's resources, they are boundaries against aggression.
seems to indicate that parents DO NOT have a positive obligation to feed, clothe, or educate their child.
However, you then state:
Children have the right to not be starved, beaten, or blocked from receiving help.
If "children have the right to not be starved", then it would seem that parents DO have a positive obligation to, at the very least, feed their children.
This:
If parents refuse to provide, they forfeit guardianship to others who will.
again, disregard this, because "others who will" are a third party, and we're not talking about third parties. We're talking about parents, children, and the rights/duties that tie them together.
(if it helps, consider that "a right to X" can be reformulated as someone else's "duty to X". This can include negative rights - someone else must refrain from X - and potentially positive rights - someone else must X. If a child has "a right to not be starved", does this mean a parent has a duty to feed his child?)
If you'd really like to discuss third parties, then the followup question would be: do other people have a positive obligation to feed, clothe, or educate someone else's children?
(from the looks of it, it seems you may believe that the "right not to be starved" is a purely negative right, and that we do NOT in fact have any real obligation to feed children - our own or anybody else's. Something which you may have not yet considered, or which you may understandably be hesitant to state clearly.)