I have the same problem, my new customers are synchronized with my CRM software and need address info to be validated. I just can't rely on customer's willingness to add their address info Аfter they registered.
I think it's really stupid that this is not a feature, especially because it always worked like this in previous versions. How can you just totally erase proper functionality?
Don't get me wrong, I think the address book is awesome, but why don't combine it with the registration page, it just doesn't make sense to me.
I'm now going to build it myself, if anyone has tips, let me know
