>>507819148
I don't talk on the phone. I have a phone in case of emergencies, but I talk, on average, about 1 hour a year on it.

But that leads to a partial answer to OP's question. What really destroyed the country was the invention of the pager. Prior to that, there was a clear separation between on-work time and off-work time. Then the more motivated allowed themselves to be bothered outside of work; then it became a demand by business owners that their employees be "available" at all time.

Growing up in the 70's, kids spent about 8 hours a day completely unreachable; with most parents having no idea where there kids were at any given moment