What?
I think a lot of new parents are more worried about their kids liking them than parenting them. Plus, if you've got two parents who are not on the same page, that is not good. I know a divorced couple with two kids, and the mom gives the kids whatever they want, never tells them no, etc., and the dad now has reached the point where he gives in way more than he used to, likely because he doesn't want the kids to think of him as a mean father, as opposed to their "great" mom who gives them everything.
This. This is my stepkids dad. He just doesn't GAF. He doesn't speak to two of the kids (they are 100% in the right, by the way) and now just throws stuff at his youngest. You want McDonald's? Let's go! He works in IT, so the kid wants a computer? Sure! You want to surf the interwebs? Right on! (Some of the videos he's described to his mom and I are... I can't watch them myself, let alone a 10 year old).
I'm with GMD on this; parenting isn't easy, and there are no shortcuts, pills or get out of jail free cards. It's a 24-7, 365 job, and you're either in or you're out. I'm at the point where if I'm in an airport, or public place like that, and I even get a hint that the parents are at least trying and giving it the effort, I will absolutely say "Hey, I've been there!" or something along those lines. What I don't abide by is the notion of just "ignoring" them. You're still in a public place. In a restaurant, every kid on the planet at one time or another has been tired, or acted up, but that's not reason to just sit there enjoying that second plate of quesadillas and pretending like it's not happening.
Along the same lines, though, I find precocious kids very irritating. You know who I mean - basically Macauley Culkin in Home Alone. Or any of those kids they trot out on those Steve Harvey (who I really like, by the way) shows, where the kid is quippy and snarky and just completely out of his/her lane.