If that was really all unions did that would be great.
Unfortunately, unions also do things like
* keep bad police in their jobs
* keep bad teachers in schools
* add massive costs by protecting positions by forcing specific rolls. "You're not allowed to carry monitor into a trade show for your indie game booth - only union members and specifically union members who's title includes -equipment carrier- are allowed to carry equipment". "You're not allowed to plugin your monitor for your indie game booth - only union electricians area allowed to plugin equipment". Those are actual examples I've run into. I've heard of many many others for different industries. You can't write a unit test, only a unit-tester can write a unit test (made up example)
Unfortunately, unions also do things like
* keep bad police in their jobs
* keep bad teachers in schools
* add massive costs by protecting positions by forcing specific rolls. "You're not allowed to carry monitor into a trade show for your indie game booth - only union members and specifically union members who's title includes -equipment carrier- are allowed to carry equipment". "You're not allowed to plugin your monitor for your indie game booth - only union electricians area allowed to plugin equipment". Those are actual examples I've run into. I've heard of many many others for different industries. You can't write a unit test, only a unit-tester can write a unit test (made up example)