Well, it's probably just one of the many reasons some married folks don't want kids. I don't see anything wrong with it.
And tantrums I'm familiar with to a certain degree. My little niece, whom I love more than any other child in the world, has lately been attempting to get somewhat expert at them...
And please don't get me wrong. I understand that even the best parents sometimes can't control their kids' behavior. It seems a safe bet that all of us were brats in public at one time or another when we were kids. :-)
And then there are probably at least a few downright evil children out there who may never have the capacity to learn to control themselves. But that might be veering a bit off topic...
I think that might be covered on a thread or two around here, if I'm not mistaken. :)