There is a reason real‐world businesses don't issue their own currency, and that is that nobody wants to hold currency that is only spendable in one business. The point of holding money is holding liquidity which can be spent as easily as possible. Holding forms of money which can only be spent in particular vendors offers very little liquidity and serves no purpose. People will naturally prefer to hold the liquid means of payment, and any business that insists on payment in its own freely‐trading currency is just introducing significantly high costs and risks to its potential customers.