All of this is a leftover from the days when *nix was a multiuser OS and used as such. It completely ignores the way we use machines now, with only one owner, a

All of this is a leftover from the days when *nix was a multiuser OS and used as such. It completely ignores the way we use machines now, with only one owner, and expectations of only one user. In fact, I can’t imagine loaning my work laptop to anyone, for security reasons, nor my personal laptop, because that’s just gross AND a security violation. Computing power is so cheap now, that we don’t need to share machines when working in the cloud, either. We can, and do, log into our own VMs, work on data and software and commit back to an intermediary before final merge into a shared repository. Perhaps it’s time to return to some version of single user OSes and clean up the relics left behind by no-loner-needed multiuser environments.