I volunteered as a treasurer of a (very) small non-profit org in the USA and in the last couple years I'd conservatively say I deposited many hundreds of checks

I volunteered as a treasurer of a (very) small non-profit org in the USA and in the last couple years I'd conservatively say I deposited many hundreds of checks, with two bounces. Perhaps 3/4 the total cash flow. Figure maybe $10K/yr worth of rather small checks. Generally people trust a check made out to "xyz" will end up in the "xyz" bank account better than just handing money to someone and hoping for the best. Also being a small org ALL our payments were done by me hand writing checks for expense reimbursements, various fees, rentals, etc. To minimize the appearance of impropriety, no cash payments were permitted, all documented and traceable check payments with the check number linked to transaction paperwork (reimbursement form, etc). Most businesses get to pay for the privilege of having a business account and per transaction, as a volunteer org our banking expenses were zero, and all the competitors (square, paypal, various wallets, etc) all want a cut of the action, even if its small, so we had no interest. A startup in the wallet business could get a lot of buzz and transactions by offering free service to all volunteer orgs / non profits. Even just temporarily for a year...