I flew recently and as we disembarked I couldn't believe the state some people leave their seats. Its not just those with kids. A trio of middle aged men across the aisle from us must have emptied a whole packet of crisps onto the floor then stamped on it.
I wish airlines could charge those who do this. Only a fiver or so but it might act as a deterrent and mean planes could be turned around slightly quicker. I don't know how it would be policed. Particularly for those who have moved seats. But it annoys me how disgusting and disrespectful people are