> What about tragedy-of-the-commons collective action problems, like pollution ... I (and OP) wrote about (informal) duties defined by society as a whole, not

> What about tragedy-of-the-commons collective action problems, like pollution ... I (and OP) wrote about (informal) duties defined by society as a whole, not (explicit) laws approved and enforced by government. Laws are necessary minimum to have functioning society and can handle these kinds of problems.