We used to develop and run our own trains, all of which were publicly owned as opposed to now where we're buying in trains from Hitachi and quite a few of the franchises are in the hands of companies which are owned in large part by the national operators of other countries (and that means European ones)
Remember when trains were advertised like this:
Recreation of 'Night Mail' - BR ad from 1988 which I seem to remember was broadcast first on Christmas Day (I was 6 at the time so I'm sure a rail fan here will correct me if I'm wrong about that)
'Black Silk' - launch of the Intercity 225 from 1991
From a passenger point of view it'd be good if the service was reliable and cheaper than it is today so I'd be in favour, what about you?
As you know I am a remainer.
I think if we remained in we could make a case that it performed better under public ownership than private, unfortunately this was proved in catastrophic fashion with Railtrack.
As for Gas, Electric and Water I do agree too as these aren't luxuries and affordable, reliable train travel would open lots of employment opportunities for people, personally I'd love to be able to afford to go and do IT in London but with season ticket prices and how unreliable the trains are I couldn't.