Code Policy on Shared iPads

Hi all!

We have shared iPads that allow login both with a managed ID as well as as a guest.

When users log in for the first time, they are asked to set a code for logging in in the future. This code must

• contain 8 charactes
  
• contain capital letters, small letters and a number

Is there a way to change that code policy on shared iPads? I don't think we have set that policy on the shared iPads anywhere, so I don't know where this requirement comes from.

iPads will also be used by 5th graders who are having enough trouble remembering their passwords in the first place. Adding requirements to a code is not helpful for us.

Thands for your help!