Global
I agree but but the lawyers got there first, in some country's travel is a human right and can't be taken away. In these country's is only when the person starts to misbehave that you can take action to have them removed from the flight.
It seems to me that the lawyers have turned the human rights laws on there head, the normal law abiding people seem to have to put up with all sorts of antics because of the human rights of the rude & disruptive.
My guess is that by ensuring the human rights of the disruptive, the leagal ( so called profession ) ensures a regular income for itself.