Exactly. Ticket offices might only be truly needed by 5-10% of customers, but that still means an awful lot of people who would be inconvenienced and potentially overcharged if they have to buy online or at a TVM.The point I'm trying to make is there are lots of apparently "edge cases" which need to be resolved or removed, before you can entirely get rid of ticket offices.
For example:
- CIV
- platform tickets
- warrants
- rovers, rangers etc. (as pointed out before)
- excess fares
- heritage rail tickets
- refunds (eg. bought wrong ticket at TVM)
I think you resolve these issues by radically simplying the fares system and removing the complexity - some of these things are archaric and quaint but completely inappropriate in a modern railway that needs to cater for the needs of most people.
I accept what's been said before about staff training and ticket offices not necessarily being able to help with complex ticketing issues...but I think that's more the fault of the system, than the staff.
If TVMs could sell every ticket that ticket offices could, and could provide advice on tickets for those who are unfamiliar (e.g. "don't buy the Avanti only ticket, it's only 10p cheaper than the Any Permitted") it wouldn't be nearly as much of a problem. But they don't and there is no indication that this will change anytime soon.
Most countries have moved to the model of having ticket offices only at major stations and I think that's the endgame here. Certainly the days of having ticket offices at every Merseyrail/GMPTE/WMPTE etc. shack are numbered.
There's a fundamental difference between airlines (particularly low-cost ones, which generally don't offer flights involving connections) and the railway. Airlines are compulsory reservation and "Advance" only, whereas the railway still offers flexible tickets and doesn't mandate reservations.The low-cost airlines (easyJet, RyanAir etc) seemed to have successfully managed to 'train' their customers into exclusively e-ticketing/print at home type system and even the not so low cost airlines were moving to self service checkin machines (till covid came and added loads of hassle that has to be checked by a human)
Granted you cannot quite compare international air travel with domestic rail - rail should be simpler and more accessible.
Ironically many of the low cost fares are much cheaper than long distance rail travel in the UK, which is probably discussion for elsewhere, more that the irony to me is that airlines show up rail by offering cheaper tickets and really embracing e-ticketing (because it is cheaper/more profit for them)
For as long as the railway retains this flexibility it will retain a degree of complexity that requires a staff presence, at least at the major stations and interchanges.