I think there is a definate difference in peoples expectations when it come to ‘drop-off” and ‘parking’. Most I’m sure would reasonably expect to pay for parking but to pay to pull up at a kerb to drop someone off then immediately leave is not a reasonable expectation.
Additionally, the fee will creep, £1 now soon becomes £2 etc etc. These business models also have a tendency to spread if they gain traction. How long before its £1 to drop someone off at your local railway station?