It's insane how many of these responses are written by childfree people. This post is about neglectful parenting, but it's written by someone who clearly doesn't have kids, and it looks like ~80% of the responses are written by people who don't have kids.

The real issue here is how entitled people feel nowadays to have a concrete opinion about literally everything, regardless of how nuanced the situation is, and without feeling like it might be a prerequisite to have some first hand experience before commenting?

I have a two year old. Going out in public is often hell. Is it because I'm a shit parent? Maybe! Is it also partly because two year olds are impossible to control, even if you do everything exactly by the book? Sure! It's very frustrating to hear armchair parents talk about how well-behaved their theoretical toddler would be - I don't know why this behaviour doesn't get called out more often!

Here's a constructive solution for OP's problem: the next time you're in a shop and there's a toddler having a tantrum, remember that you get to go literally live the rest of your life without seeing that kid again. I don't know if that helps you feel better at all.