Within the next few days, the US House of Representatives could pass H.R. 302 which addresses funding of the FAA for the next five years. Part of this bill gives the Department of Transportation one year to establish minimum seat sizes on airplanes.
The old standard pitch of 34 inches as shrunk over the years to 30 inches. Some economy airlines have a pitch as low as 27 inches.
I have sat once in a seat with a 28-inch pitch and it was difficult to even get to my window seat.
Help may be on the way flyers!