I have seen small, unstaffed stations with card-only ticket machines, e.g. Portway Park & Ride Station near in Bristol; stations which if they didn't have a card-only ticket machine, the alternative would probably be no ticket machine at all. But I was surprised to see that Brent Cross West, a staffed station with ticket gates and three ticket machines, is card only. Is this the busiest card-only National Rail station?
It's 2026, not 1985.