It vexes me when people feed their children crap
Too many times, obese/fat parents who don't know or give a shit about eating healthy bring their ignorant children up on appalling diets.
The parents either cave, or don't bother trying, and consequently the kids end up eating mostly fast food, sweets, or other processed foods.
They think that "vegetables are gross", because they weren't brought up eating them. The way Americans prepare vegetable dishes can sometimes be bland and unappealing as well. Too many people don't know how to cook properly.
The children often end up overweight, and unless they turn it around as they grow up, the fatuous habits that were instilled/allowed by their parents persist.
When I see adults who don't even know basic nutritional facts, especially the stuff that's on the back of their food, I think that their parents neglected that department.
I try to tell myself that it's none of my business. And while I've never criticized one of these irresponsible parents to their face, I can't help being pissed off.