Help Device manager missing on AT&T

[GaryK2]

A friend of mind lost her flip phone and I talked her into a new S4 from AT&T. I have a Verizon S3. One of the first things that I wanted to configure was the device manager in case she misplaced the new phone. Under Google settings, there is no Android device manager! I also looked under the regular setting under security, device administrators and there were no entries. On my S3, I have a Android Device Manager check box which I have checked. It does find the device through the web interface, but it won't be able to wipe the device. Am I doing something wrong? Is this an AT&T thing?
How do I get this corrected?

 

[Rukbat]

I don't know the particular phone, but I use Android Lost on my phones. It can locate the phone, wipe the data, take a picture, make a loud noise, etc. It's free at the Play store.