New products and technologies are always going to change which jobs are in growth and decline. The trick is to look a little ahead and make sure you are ready to jump to a different job if things are looking dim as well as to prepare your kids for jobs where there is going to be more growth than decline. I remember as a kid, a distant cousin kept complaining he couldn't get work becasue the economy was bad. the economy was not too bad, but his job as a lather meant he only had occasional work because he refused to learn a different skill to keep up with the times. This job loss argument is usually the same one that keep outdated fossile fuel energy alive when more investments could be made in renewable resources with limited job loss by training people from the other sector for the cleaner, and probably better paying job.