Air New Zealand to weigh passengers before they board the airplane

When they calculate pax fares, based on pounds / kilograms, expect some trouble.

Might be a few less seats per aircraft in the future.

aircraft are capable of lifting weights at takeoff, so why would any passenger object to a flight knowing how much it weighs at takeoff? Cargo is charged by the pound and distance. How are paying passengers in any significant way different? Same air fare for a jockey as a nfl defensive lineman? makes not much sense. THis could result in varying airfares based solely on pax body weight and baggage weights. Lighter carryons will result too.