https://hongkong.asiaxpat.com/Utility/GetImage.ashx?ImageID=70d2d80d-0667-4202-9d4a-7cda950e9ecc&refreshStamp=0
U.S. airlines may need to start weighing passengers in order to comply with FAA rules. For safety reasons, carriers need to calculate an aircraft’s weight and balance, and it has to be within allowable limits for the plane. However the assumptions they’ve been using for passengers are outdated. Americans are getting fatter, and the federal government wants airlines to find out how much fatter their passengers have gotten, at least for smaller aircraft.
https://viewfromthewing.com/u-s-airlines-may-start-weighing-passengers-at-the-gate/