I hope when you all have kids you remember this thread and realise that you can never leave the country because you can't fly anywhere with children, in fact you will hardly be able to leave the house in case your children upset someone in the shop, restaurant, cinema, theatre or any public place.
Parents have a life too. Just because I decided to have a baby doesn't mean that I'll never go anywhere or do anything in case I upset someone else. I'm going to live my life and do whatever I want to do whenever I want to do it. If I want to take my daughter on a plane I will. If you don't like being around children then YOU stay away from public places including planes. You do have that choice.
All these parents wanted to do was go home. Yes I agree that it's not fair on the other passengers that they were disturbed by the child causing a scene and I agree that it's not fair on the airline to be held up because of a child causing a scene but until you have your own children you will never understand. Maybe all you can relate this to is that you never did that as a child because you knew what you would get when you went home but you must have done it at least once to find out what you would get. We're talking about a three year old child here.
People do not become excellent parents as soon as their children are born, it's a learning process. Everyone has to learn how to cope with their child's ups and downs. They're not robots, they're little people with their own minds. All parents can do is try their best to teach their child proper behaviour, right from wrong, and hope for the best. Maybe these parents never saw their child behave like this before, it might have been a new experience for them. We'll never know.