I feel your pain. I’m having the same problem. These people just don’t understand.
I’m in a school system with about 6,000 Mac’s. Student’s accounts are (standard)
Teachers and Administrators are (admin).
We give the Admin’s a password so we can log in and make changes or add software.
Many people change the password for their security but don’t give us their new password.
That’s when we login (Other as Root). We can do our work and get out. Maybe we should
just format the drive and install the original setup with the password we gave them.