While I agree with the sentiment, what should really be used is full disk encryption in this case. This is available via the alternate installer. Optionally you can use the libpam-tmpdir package for per-user temporary directories. I am going to mark this bug as "Won't Fix" for now since there has been no activity on it for a year and developers are working on other features. Feel free to reopen if progress is made that a developer can incorporate into Ubuntu. Thanks!
** Changed in: ubiquity (Ubuntu) Status: Triaged => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/575463 Title: When encrypting the home directory, /tmp nor /var/tmp is encrypted -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs