So yeah, I'd gladly pay a bit more to order via an app. When I'm ordering delivery, I'm already paying premium on that day anyway, the margin of which is way higher than 20%, so I might as well go all the way and avoid dealing with something I don't like.
If I'm not using an app, I'd rather run a mile to make the order in person, than make a phone call.
The apps are awful as well. I delivered when I was gifted some gift cards after a loss in the family they raise the prices with gift card balances.
Literally across the street from my neighborhood is among "the best local pizzarias," and I'll still offer to pay for the entire order if somebody else orders / picks-up ("tip them well" I'll usually suggest). I just don't want to talk on the phone (and don't use apps).
...Americuhly, the usual neighbor still drives (it's like 1000m, round-trip).