I have discovered immortality.

No one can really say that they're right in this world, analogous to the way that no one can ever say that something else is at rest because there is no preferred frame of reference in the universe for that statement to be true. Matters of perspective cannot be quantified. The path to being "right", as far as we know, could have an infinite ceiling, and our grasp on morality may reasonably change with our understanding of the physical world. 

Therefore, if you want to suppress a mother's ability to stuff Oreos into her child's mouth, you may be wrong, but you may also be right. To a mother who is so concerned about her child being negatively influenced at school I would strongly suggest home schooling, in fact I would suggest home schooling to anyone, if for nothing but to avoid the walk to school, so as to avoid the ambushing tigers. 

However I understand that home schooling may not be an option to everyone, especially if you are not financially able, and perhaps you were forced to have children without financial capability because you live in a village that gets ransacked by tigers on a regular basis and needed the extra hands to keep up with the farm after your unnamed husband died defending your village for fourteen days and fourteen nights from a relentless tiger onslaught. 

But if a man gets killed by tigers and no one is around to see it, did he get killed by tigers? His corpse would be at rest, but since there is no absolute rest in this universe, no one can say for certain that his corpse is at rest, and a corpse must be at rest in order to be a corpse, which means he must certainly be alive, and so you should or should not feed Oreos to your children, depending on how you might suppose to look at it.