Shops need fiat money to buy in the goods they sell , and have to be transparent to government robbery tax theft criminals , and pay that tax in fiat . Doing sales in crypto adds a whole lot of extra administration work to the shop-owner . But for private trade among private people stable coins are perfect now , like when i make a wood oven from scrap-metal and sell it for crypto to a other private person with a private wallet that is hidden from government's greedy tax system . I accept monero piratecoin and city coin ,.. ;-)

I think we need to get rid of government first ,.. but you are trying , and spreading the word at least , keep it up bro . :-)

I have binance , fees and charges are low there , and BNB is already a stable coin kind of thing . I do not know about other cheaper coin trader sites , got some but never looked in to it .