Bieng that I am the dad of a two year old girl and a four year old boy (plus one on the way), I'll attempt to not get offended by this. But I will explain it.
Kids have always and always will be ones to pitch a fit anywhere they feel like doing so. That's the nature of the beast because they don't understand the feeling of dissapointment. And when a parnt is "doing nothing" they are doing something. It's just that people who don't have kids are too stupid to understand the situation. Kid is at the mall. Kid wants something. Parent says no for any various reason. The kid has that toy already, birthdays are coming up, whatever. Kid doesn't understand patience and dissapointment and has an emotional meltdown. Parents could either a) spank the kid in public, which alerts a dimwitted and uneducated individual and they take it upon themselves to call the police and report child abuse. In my mind said person should be imediately condemned to death. Or b) appeasement. But history shows that doesn't work. Hitler was given the Rhinelands, and then took Poland, France, and just about every other country because appeasement is a ticket to doing whatever you want. Or c), they oculd ignore it. Because in ten minutes the kid will stop crying and get over it. And will understand that life isn't always fair.
So in closing I give you a bit of advice: If you see a kid crying in public, either deal with it or go somewhere else. And keep your friggin opinions to yourself.