MIG wrote:
Michael R N Dolbear wrote:
Stevo wrote

"People are generally bigger than they were. A poor diet used to mean
people didn't reach their full potential size. Improved nutrition has
changed that."

I'm not sure that this explains why the seats keep getting smaller
though.

In any case, the change in average size of person since 1938 must be
trivial in comparison with the range of actual sizes either then or
now.

The average tube passenger has probably shrunk since the 1930s, along with
changing their sex.