The 2nd top reason for Merchants to accept Bitcoin and it’s crypto currency cousins is that Bitcoin as opposed to credit cards is bank fee FREE.
Merchants no longer need to pay 3% or more their sales to Visa, MasterCard and their siblings.
Crypto users typically pay the fee, usually a small one depending on the coin used. Bank free and banking freedom in the modern age. Crypto currencies lead to a better future for both Customers and Merchants.