@ thartman1956 - Commuter services are free seating over here. The only reserved tickets tend to be on inter city services although that doesn't apply to every seat.
On that note, I recall a journey from Newcastle to Edinburgh when 3 friends and I boarded the train with reserved tickets. We found our seats and there were 3 well heeled people sitting there without reservations. Of course we asked them politely to move and received nothing but abuse and as the guard appeared, I asked hime to get them to move which, after checking everyones tickets, he did. As they didn't have reservations it was easy enough but once the train was moving, I checked my ticket again and realised the mistake was ours, we were in the wrong carriage. Ooops.
Better still, the guard came back and said to me he had noticed we were in the wrong carriage but that the people he'd moved had been thouroughly obnoxious all the way from London so he was more than happy to move them and say nothing about our error.