This is just conjecture, btw, I have no authoritative knowledge of their plans to do anything.
I'd guess it's more likely the opposite dynamic, where they'll get a bunch of early adopter types to sign up without thinking through the ramifications. And then after the honeymoon period, Amazon will start demanding those users file police reports for missing packages since from their system it now looks much more airtight that the package must have been stolen from the buyer.
I honestly can't think of a single person I know who routinely locks those doors.
Big pink house on Foo St. (#8-5-5)
or
Big red-and-yellow-striped house on Foo St. (#8-8-5)
or whatever colors they are? If they are the same color, repaint one of them.
As a bonus, this will completely throw off all the automated data brokers, idiots that use "KYC" as an excuse to want to know where you sleep, etc.
Alternatively put an apartment number on your house (there will be only one apartment, of course.)
One of you will be
855 Foo St. Apt. 1
The other will be
885 Foo St. Apt. A
This is the same thing that continuously requires me to use my "ZIP+4" for absolutely everything, even though as far as i can tell, there is zero point in ever using it unless one is literally doing metered US Mail.
If you write "885 Foo St. (blue house)" it will get standardized to "885 Foo St."
If you write "Blue house on Foo St. (eight eight five)" the standardizers will choke and it will be printed as-is.