No. By default if you have more than one user on the system Log Off automatically shows up as does Switch User. If you want the option with only one user this is all you have to do:
Originally Posted by BO$$
Always show the "Log Out" entry in the user menu
Since GNOME 3.6, the "Log Out" entry in the user menu is only shown when multiple non-root users are present in the system.
To always enable this entry, run the following command from a terminal:
# gsettings set org.gnome.shell always-show-log-out true
You can also change this in dconf-editor: Navigate to org.gnome.shell, then check the "always-show-log-out" checkbox.
Then, restart the GNOME shell:
This really isn't THAT hard. You would think for those of us (not speaking to you directly) who compile programs, configure wine, or hell give me something (install RAID?). I don't know but this...
...isn't that hard. It's ONE (uno, ein, un) line. For pete's sake it's takes one line and a password prompt to log in via SSH and somehow all of us make it day to day. We've gotten to a point now with GS that some of the complaints are just ... I don't even know what to call them anymore because they aren't based in reality. Even if someone had to install an extension for this "feature" which you don't, it would take seconds to do. I'm not kidding it would take you longer to pee than to install an extension. Goodness gracious.
gsettings set org.gnome.shell always-show-log-out true