The key factor in verifying your identity is a device/item that is registered to your person’s name, e.g. a mobile phone.
The excuse is that this is for verification purposes, in particular a verification process that requires another action by the user, which is called 2FA (Two Factor Authentication), but this is not the only method.
Another way to authenticate a user is via a device called a keyfob where an example of this is a commercial product like the Yubikey, but the problem there is that the authorities do not have a ‘person’ attached to this.
Being under the umbrella of the ‘five eyes’ Google passes on information to the various three or four (or however many) letter agencies in order to populate the database in your name.
Now Google wants you to put in your home address.
Why not business address?
Why ‘must’ it be your home address?
Will Google send you the verification code to your home’s letter box?
How long will this take if we live in Papunya, in the Northern Territory, Australia?
We do not recommend you to supply Google or any other online entity your home address, where if they insist, seek alternatives to that corporation’s services.
Corporate Australia 