I remember on the Pascack Valley Line on the Erie (now Metro-North) the conductor going through and flipping the seats preparatory to getting to the end of the line.It absolutely takes time to turn the seats. These aren’t modern Japanese trains where the seats can all turn simultaneously at the push of a button.
An employee must flip the seats, row by row, across 8 cars. In what world does that not take time?
Also, the old cars on the Staten Island Rapid Transit back in the 60s, flipping the seats at Tottenville and St George.