Yeah, sorry if I wasn't clear. I meant that the CI build servers do have a consistent version installed. But it is pretty hard to control what devs install on their laptops, and it is a little hard to write TF code without running `terraform plan` to test it, so a lot of devs may end up with TF installed. If they run `terraform apply` (and have access to write state) it could mess up the state file version.

Of course that is solved by using `terraform { required_version = "= x.x.x" }`, but that plays into my point about having tons of state files, not being able to use variables, editing tons of files, and updating tons of states.