How to Avoid Having to Kick People From Plane due to Their Size
Let the price of a ticket be based on a person's weight. For example, if the charge was 1.00/lb. of body weight, then a 100 pound person would pay 100 dollars and a 300 pound person would pay 300 dollars. The larger person could then use two seats if needed. Weigh-in would come at the ticket counter.
The plane can only lift just so much whether the load is passengers or cargo. It takes the same fuel to lift 10000 pounds of people or 10000 pounds of cargo.
That beats getting seated and then being asked to leave. But then again sometimes when you are asked to leave, your next flight can be free or at greatly reduced fares.