Hearing the truth??

All:

I've got an interesting situation at the office I could use some advice
on.  I'm being asked from a security perspective whether the following
statement (made by our Unix admins) could be considered true:

"The only way you can delete a user account on a unix environment is to
write a series of scripts to eliminate file associations."

So, while I don't disagree with the logic, is this actually the case
that there are no commercial tools available to assist in this arena,
and the only method of deleting a user on a system safely and
effectively is to write a bunch of scripts on your own?  This just begs
to be a problem solved by a commercial entity if it's actually the case.


We're in a Sun environment. Some thoughts would be appreciated. 

Brennan