I've felt that this could be a place where unions and/or guilds have a role. If I hire a union worker then the union guarantees that the person shows up and doe

I've felt that this could be a place where unions and/or guilds have a role. If I hire a union worker then the union guarantees that the person shows up and does quality work. If that doesn't happen then the union is held legally and financially responsible. In this world I would be happy to pay a premium for a union worker.