And I now have a list of people whose ill mannered brats I’d cross the street to keep from being close to.
Universally, an ill behaved child is the scorn of the world.
A principal smacking a distraught five year old child with a wooden paddle is not what keeps him from being an ill mannered brat. Loving discipline and guidance (which may or may not include spanking) by a parent who cares deeply about the way he should go and sets good examples for him to follow does.
Sometimes punishment is necessary. Children do need to know what is unacceptable. Corporal punishment of a five year old is not appropriate. A spanking by mom or dad is an entirely different matter.