I have already completed the TPE survey. Waves of nostalgia came over me as I recalled my father booking seats for us on the ECML in the 1950s and 60s. It cost £1, later increased to £2 a ticket. Did those charges finish with privatisation?
Whatever, this was the situation in the summer of 1989.
Every seat reservation was written out by hand and manually attached to the stud above each seat. On TPE's 185s paper reservation tags still have to be added manually at the start of each journey, thankfully printed out. Obviously it's less laborious in the more modern units.
Then what happens? No charge for a reservation so if we spot a 'nicer' seat we go and sit there. We see a friend and go and sit by them. The net result may be a third to half the booked seats aren't occupied. But they may have been earlier or will be further along the route. On some trains! On a few (3 car when it should be 6?) you can't get to your reserved seat through the crush! A reserved corner of the 1st class floor might be good.
As usual there are no easy answers. My usual route is Sheffield to Manchester/Liverpool. EMR gave up reservations some years ago. That's another lottery job - will it be 2, 3, 4, 5 or 6 cars? Will it turn up? Until all trains run with the same rolling stock at the planned length without delays and cancellations EMR's policy may not be so far wrong - perish the thought!
If TPE want to introduce a £2 charge for a guaranteed seat I could live with that when wanting to sit with family or someone else. If travelling alone I'd take my chance, possibly paying Seatfrog to get a 1st class seat.