The password for the user must be provided either at this point or
in InitiateEndUserSignUp mutation.
If the end-user app will enforce the user to provide it in the
InitiateEndUserSignUp mutation the password must not be provided here.
If not, giving a password at this point is mandatory.
If it's given at InitiateEndUserSignUp step, then the used cannot override it here.
The password for the user must be provided either at this point or in InitiateEndUserSignUp mutation. If the end-user app will enforce the user to provide it in the InitiateEndUserSignUp mutation the password must not be provided here. If not, giving a password at this point is mandatory. If it's given at InitiateEndUserSignUp step, then the used cannot override it here.