I feel people may be over thinking this. If there's been a problem at the station with people just waltzing in the second entrance without crossing over to the other side to buy a ticket first, then having a member of staff there asking to show your ticket could just be a way to ensure people do actually go over and buy one, rather than just slip in?
"May I see your ticket please?"
"I just need to pop over and get one from the machine" is a perfectly reasonable conversation in my opinion?
If the staff asked "Hey, are you going to go over and buy a ticket?" and it turned out the customer already had purchased a ticket digitally or had a season ticket, then their question sounds accusatory/incriminatory and could lead to escalation.
I think the check sounds perfectly reasonable to me in these circumstances.
"May I see your ticket please?"
"I just need to pop over and get one from the machine" is a perfectly reasonable conversation in my opinion?
If the staff asked "Hey, are you going to go over and buy a ticket?" and it turned out the customer already had purchased a ticket digitally or had a season ticket, then their question sounds accusatory/incriminatory and could lead to escalation.
I think the check sounds perfectly reasonable to me in these circumstances.