I am happy to help people in need. Just not being told that I HAVE to. That's my point. There are many ways to help without actually parenting someone else's child.

I'll pull your kid out of the road if it's about to be hit by a lorry, but I'm not gonna do the school run, sorry. And again. I am perfectly kind and polite to any children I meet, most well-adjusted adults are capable of being civil with even people they dislike, so stop extrapolating.