Your doctor needs a record of your weight from visit to visit in order to make note of variation. Your weight can also be needed to set proper doses on some drugs.
And like at Stacey Abrams and Jerry Nadler's doctors' offices they need to buy reinforced and structurally sound chairs and flooring. No more "Just have a seat here in the examining room and the doctor will be here shortly" followed by a strained, sinking and then shattered chair and a dazed patient on the floor.
And the words on the little metal rectangle on the scale say "Kansas Galaxy Scale Company Is Not Responsible For Your Livestock Being Injured If Not Properly Secured Before Weighing."