Taking away the job does solve the problem though, because the cobalt must come from somewhere, so the mine will increase prices to pay for the new labour they need. And the tax from this will pay for the schools.

The ultimate reason it doesn't happen is because people in the west don't want to pay more for their smartphone (they are not to blame though, as they won't see this picture, our politicians, corporations and planners are the groups that maintain this picture deliberately).