I have ridden in some old (1950s) American passenger railroad cars.  If I stretched my legs out full length, I could just <i>barely</i> touch the back of the seat in front of me.  (I&#x27;m 5&#x27;8&quot;.)  At that point, the person in front could recline their seat to their heart&#x27;s content without causing any issues.<p>Oh, yes, there was an adjustable leg rest, too.<p>I&#x27;d love to be able to travel like that today (but of course I probably wouldn&#x27;t be able to afford it...)