I get what you are saying. Sure there certainly are those parents. We've all seen them, the ones letting their kids run around a restaurant getting in the way of staff, running into other customers while they completely ignore it. But my problem is that most people automatically assume that in any situation where they are annoyed by another families child that that child must have "those parents". And you have no idea what might be going on in their family or with that child. I wish that most people were as considerate of parents who are just trying to do their best as everyone here says we should be of others instead of just assuming that they are not trying or not being considerate of others.
Like, sometimes you just have to let your kid throw a fit so they learn they won't get what they want that way. One of my kids learned that lesson much easier than the other lol. my youngest, it just took one or 2 times of taking him out of somewhere for him to figure it out. My oldest tho.... lord that child... You know what finally worked for him? Letting him sit there on the ground at wherever we were at the time (the zoo I think), crying and screaming while I was completely ignoring him and focusing on the baby. One time it took for me to do that for him to learn I was not going to give in. After IDK how many times I'd carried him out of places and done all the things "considerate, good moms" do. I was beyond mortified and embarrassed knowing people were looking at me and judging. But it never happened again after that. So I will never assume that just because it looks to me like a parent is purposely being inconsiderate or not doing anything to get their kid under control that that is actually the case. Because for the most part, they do care, and they are trying, you just don't know bc you've only seen them at that one moment of their lives.