Umm. Why in the world didn't the dad throat punch his pedophile ass. If he even looked at my kid to long I'd been oh him.

Lots of old customs are no longer socially acceptable, this one seems to be a particularly inappropriate one.
In the UK I can recall when swatting a child on the buttocks was considered a sign of affection from an older person, even a stranger, as was pinching, slapping and tweaking.
Glad people keeping their hands to themselves is now the norm and pain is no longer thought to be affectionate.

Interesting, old habits that may not be so good for society anymore.