Catering would be "nice to have" but if the costs don't stack up, well then. The way people go on you'd swear it was Michelin starred grub, that it was not, certainly not in the 90s at any rate. Journeys here are short compared with elsewhere so I don't think there is a need for it, especially to humor people who either never travel or hop on board once in a blue moon just to complain.
Curtains on windows, a near useless piece of fabric to be dragged around, get grubby or gather dust and needing replacement. People don't even have curtains in modern houses anymore! Other railways have pull-down blinds but our sun is rarely strong enough to warrant these and knowing the public, they would be wrecked in jig time.
The one thing I do miss is the ability to order or bring my own beer on board like most any other country in the world but thanks to a minority of people who are chronically unable to behave themselves and a lack of deterrents here we are. This is a society wide problem and not exclusive to rail. If AGS are unwilling or unable to provide anything more than a sporadic, reactive patrolling of public transport, a dedicated transport police is needed like most other countries, I don't see why we have to be an exception.
80s nostalgia. 1984, when it was a few years since they had the worst accident on this island in living memory? A cash starved system sometimes literally held together with baler twine? Do we really want to return to that??