We used to have admins whose entire job it was to find out when people could meet, and they no longer exist (or only in much smaller numbers) because you use your online calendar tool.
We used to have people who would physically fly bank checks from one city to another each night, and in a single day they ceased to exist when you were instead able to transmit just the numbers back and forth.
People who used to sell encyclopedias are out of work. People who used to develop rolls of film are no longer around. We're missing a whole generation of telephone operators.
But people will deal. Because these developments come from every single one of us using tools and adopting things that we choose to, not because it's some decision handed down and enforced by some government against our will. You and I, using Excel, scheduling our own meetings, using direct deposit or even our phones.
I don't even believe yet that these latest models are going to be that transformational, but even if so, people will deal. And new things will take the place of old.