Right, but the default position is just small packs in disposable containers. As long as you have to make substantial efforts to so otherwise, like finding a sp

Right, but the default position is just small packs in disposable containers. As long as you have to make substantial efforts to so otherwise, like finding a special company or paying for Costco (and getting there, who lives in walking or cycling distance of one?), it will remain what 99.5% of people do. And it's not even an unreasonable position for those people. Making an enormous effort to just find a bottle of soap is not sustainable.