The minute tech gets involved it's also another thing to go wrong..

Personal anecdote time: Recently went to a car park that had to pay by phone and no phone signal (in the UK if it's relevant).

This was obviously a common problem, so they provided an open WiFi network limited to just the parking website.

Unfortunately, I had to create an account to be able to pay to park, and the account creation was gated by a Google captcha that.. wouldn't load as it was blocked.

So no way to pay to park, and a crowd of confused tourists all trying to work out how the hell to park without getting a fine.

Fun times