If I have a logged in gmail account (say, for example, in the play store), the phone absolutely forces me to save contacts, calendar appointments, etc. to the gmail account.
For example, if I add a contact, I'm supposed to be able to say where I want to save the account to (my email account, the device itself, etc). It will not allow me to save to the device (that's not even a selectable option).
Device is a Moto Z Play, Android version 8.0.0