Monterey disables System Integration Protection ??

Monterey disables System Integration Protection ?? My wife upgraded recently her MBP to Monterey. Mail crashed due to unknown reason after a new mail account setup and we got a crash report which has been sent to this ASC for help. But this is a different question.

I was surprised to see in the first lines of the report that SIP was disabled.

Used terminal to check with csrutil status and it was disabled toghether with other disabled functions.

No idea why or even if the SIP was always disabled from the beginning of this MBP or if Monterey disabled it.

The MBP was alway in very good and healthy conditions. It has only "normal" Apps installed, Apple Apps MSOffice, nothing strange.

Sure my wife has not the knowledge to play with Terminal and even myself I know about SIP only after a recent help in ASC which helped me to remove a file from trash.

I enabled SIP again but I would like to know why it happened. Or does Monterey need to disable SIP ?

Is it right to reenable SIP ?

Thanks for your suggestions and explanation