Random device encryption when setting up mail, why?

Question

Android

We configure corporate mail, the DeviceEncryptionEnabled property is disabled in the exchange policies, i.e. no need to encrypt it according to policy. BUT!
Devices ask to encrypt them, and they are different and always in different ways, so it’s hard to find logic in this. Maybe it's some local feature of android'a? Or does it all depend on the vendor? Are there any other options?

Answer 1

Maybe it's some local feature of android'a?

general paranoia with encryption