Good post Rigby46.
As for driver only - there are huge huge differences between different types of train routes and services
A small, say 5 small carriage train that stops every 5 minutes is in not so much need of a guard[whether on the platform or on the train], as a many carriage train which has a buffet car, and does 30 or 40 minutes at least between stations. It may also run late into the evening at at night.
Which is a different type of train and route to a heavily used commuter one.
How to Keep Living at Home Longer
Why doesn't Starmer hold another referendum?
When a political leader lies on their CV - can you trust them?


it is all about human contact.
