They won't. They'll just substitute them. The idea is trying to force every company do the same thing, as making people work locally makes them more dependent on their local company and less likely to jump to a better job.
Then you can lower salaries (not rise them) and destroy benefits. Also you can enforce dress codes to make it look like a dictatorship country like North Korea.
I tried to RCS with my brother today (iPhone user). I told him to set it up properly and... It didn't work. SMS are still sent.