After enduring a 22-hour, door-to-door travel time getting home from IBC, I'm ready to endorse children-free airplanes. I was unfortunate enough to encounter several of the most ignorant, selfish parents with small children in all my years of flying.
In both legs of my return flight, there were multiple 3-year-old-something's who were allowed to totally disrupt the flights with their screeching, screaming behavior. I watched (and was forced to listen) as these acoustic terrorists held all of us passengers hostage, in one case for nine hours. No one, including the kids' parents, worked to temper the behavior of these obnoxious brats.