Surely this could be dealt with by accepting a "membership card" over NFC. I'm sure my dad has a token for the parking barriers at his place of work which can also take direct card payments.
As an added bonus, when you have family or friends visiting they can pay to charge as normal (at presumably a slightly less attractive rate).
Currently, I just plug into my friends’ charger, and it goes on their electric bill.
I usually bring 10x the dollar value of the charge in booze and food, so it doesn’t matter.
Also, they don’t have to stress out over trying to figure out how to pair my car to their house and charge me $5 while they’re trying to plate dinner and deal with their kids.
If they cared about the $5 (or if I had a hummer and they had a DC fast charger, so it was $20-50) I’d happily pay cash or apple pay or venmo or really any option other than authenticating with their landlord.
I’d happily pay $0.30 per charge session to just use standard NFC or chip payments.
Also, why in god’s name would I have authentication on my home charger?