Never even heard of velle or veno before. Am always asking about cash discount.
I've heard of them. I believe one or both are owned by PayPal.
To ask people who are just running a small community event, not a commercial enterprise, but just volunteering their time at said event, to accept a debit card, or one of those electronic payment systems is ludicrous imo.
Again, who doesn't carry $5 on their body for incidentals.