> There is absolutely no reason for them to accept money only in cash in 2026,
When I was young, cash was beloved by some as a matter of principle because of the fact you didn't need any authority's permission to accept it; coupled with its anonymity.
If you were running the city's only LGBT bookshop, you didn't want your till full of signed, dated checks - and card processors wouldn't do business with you even if you wanted to accept cards.