I've never been on a flight where a child has been the issue. I suspect when most of you say children, and what this meme is referring to is Babies. Children can be mitigated and distracted. By five most can be reasoned with. Babies are a completely different situation. I can tell you from experience, it's not fun to be the parent of a wailing baby you can't calm down. I can't imagine what that's like on a flight - and you might not know what they'll do until they get there. - They might just fall asleep! Flying is a unique experience. In those cases all you can hope for is the patience and understanding of those around you.