If a passenger can be banned from flight just because he/she is overweight (which is not his/her fault), there should also be ban for people considered as being a danger, menace, and irresponsible. This ban should especially apply to the reported unruly, drunk, violent passenger who assaulted flight attendants and other passengers on board India Air.
Some people place the fault to the airline for providing alcohol to passengers in the first place, and allowing him to drink more than the allowed dose (or number of drinks). Although alcohol is required by some passengers to induce sleep and to calm the nerve, some people just have the opposite effect and become agitated, unruly, disorientated, and irrational. It would be a difficult task to identify the latter group. However, with a system to identify such individual, extra precaution can be made to prevent them from being a danger on board flight.
Ban from flight should also be applied to selfish, irresponsible, and suicidal people. For example:
- Passenger who ate peanuts (although given warning not to do so due to the presence of a girl who is allergic to them on board) nearly caused the death of a girl who is allergic to them.
- Passengers who didn't heed advise to follow stipulated rules to minimize chances of terrorist attack, e.g. passengers with uncharged mobile will be turned away, passenger who made callous joke about bomb on board plane, etc.
Just a thought.