You create users with privileges based on the knowledge you have at the time. The information you have is probably wrong, so get comfortable with editing users. In most cases, chpass(1) does everything you need in a user-friendly way.
Users can edit their own accounts by running chpass without any arguments.
$ chpass
$ Changing user database information for mwlucas.
Shell: /usr/local/bin/tcsh
Full Name: mwlucas
Office Location:
Office Phone:
Home Phone:
Here, users can update their shell or change their directory information. Many applications ignore the directory information (phone numbers and office location) stored in /etc/passwd, but in some places, it’s important. Make changes, save, and exit.
If you run chpass as root, ...
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