I'm going to play devils advocate here...
Should life stop simply because you have a baby? Should you lock up the other children because you choose to add another to your family? Should you ignore everything even the youngest child (newborn) can take in simply because they can't "appreciate" it? What about people who live in those type of temperatures year round? And how do you know it isn't just a baby who cries period? If it is a nursing baby how is a sitter going to feed it?
Now don't get me wrong... I do believe that you need to take care of your baby's needs--keeping them the right temperature, properly hydrated, not drinking and driving are among the top of the list. I also highly believe that you need to be considerate of the people around you--bb tickets are expensive and even when children under 3 are free, others don't want a constantly crying baby ruining their good time.
I'm just thinking you can carry this way to far into many different areas by generalizing. And since I don't know the specifics, I wouldn't want to pass judgement personally. But then again, I wasn't a witness either.