Share 'Database Objects and Source Control'

I've been trying for years to get my employer, team members and main client to let me set this up but I hear a variety of excuses including, "How can we enforce it when users can just modify the database directly?", "It would be too much trouble to get everyone on-board." and my least favorite, "This means that we'll have to change." I think that they are lulled into a false sense of security by…