I don’t see a difference between getting my 5 year old son to use his body to hold something and placing something on his body (so long as it’s safe) while he’s sleeping because I need the space, even if I’m not getting his permission to do so. In my view, the notion that I need his permission is absurd.
The difference is that when Hashem tells you to do something to your child you don’t have to ask. But technically they are correct you cant do what you want to your child. Its not your possession.
I disagree. We do what is beneficial for the child because they are our responsibility. You take your infant for shots because it benefits the child. They must go to school (or home schooled) because it’s the parent’s responsibility to make sure they are educated. We don’t need the child’s permission. And yes, sometimes we use our children for our benefit, like getting a kid to hold something for us, or placing an item on them. So long as it’s safe.