80 years is a very long time. It's long enough for two or three generations to grow up, decide what they want to do for their career, notice their dad's career

80 years is a very long time. It's long enough for two or three generations to grow up, decide what they want to do for their career, notice their dad's career outlook doesn't seem to be on the rise, and go to work in a factory or office. If the number of truck drivers goes down by 90% in the next 80 years, that would be fine. If it goes down by 90% in the next 8 years, then we'll have a lot of mis-trained ex-truck drivers out there, and that's nothing to scoff at.