The difference between a loud baby and a loud adult is that a baby doesn't have the ability (or the presence of mind) to control themselves, and so far people have been talking about babies, not children. However, it's worth mentioning that older children may have autism or a behavioral disorder that may make a meltdown more likely. This is why my first line is always to pay attention to how the parent is handling it. Are they stressed out but handling it or nonexistent? A wailing child isn't fun for parents either, especially when they're just trying to get from A to B and they can feel the other passengers' stares.I did go full teacher mode on some (totally deserving) teenagers in the back of a movie theatre a while ago. Felt good >

As to those nonexistent parents whose kids run amok? If the parents can't teach a kid that being unruly gets you thrown out, maybe amtrak should teach the parents