That is a good point. It is all too easy to forget that not everyone is internet savvy, or even connected.
In 2015, I had to use the Dartford crossing (QE2 bridge) twice and I was really alarmed about the payment system - and the warnings of dire prognostications if you failed to pay by some mysterious system within a fixed time limit - and I have a Masters in Computer Studies! I managed to work it out using my mobile phone and credit card number, but I wasn't confident about it. How many people are genuinely scared of having to pay by modern, cashless systems?
When driving across Europe, I always look for the manned toll-booth so I can pay with cash. So far, there has always been one booth with a human being present. I dread the day the last human toll collector is made redundant and I have to use "technology". I think I might have to smash through the barrier and go "on the run" like Bonnie and Clyde, with the cops chasing me along the autobahns.