(Here in the US we have numerous kinds of organization that look like a bank superficially but have different regulatory regimes: a credit union does what a bank does but is a consumer cooperative. I'd also say that many local and regional banks have a much better customer service attitude than megabanks. I own stock in a local bank that is great for the community and beats Goldman Sachs on the performance of the stock... I can't see why anybody has an account at Bank of America.)
People who grow cannabis also are unbanked.