The retail price thing could be solved in brick and mortar stores (because the location of the register is well-known), but there’s a desire of some to have the

The retail price thing could be solved in brick and mortar stores (because the location of the register is well-known), but there’s a desire of some to have the taxation amount be explicit. (I have some sympathy for the philosophy, but practically, it’s annoying, which is probably part of the motivation.)