How can you ensure your economic status will not be affected? How were farriers able to ensure their economic status wasn't affected by cars? How were switchb

How can you ensure your economic status will not be affected? How were farriers able to ensure their economic status wasn't affected by cars? How were switchboard operators able to ensure their economic status wasn't affected by automatic switching? How were travel agents able to ensure their economic status wasn't affected by Expedia, Priceline, and the dozen other sites out there? No one can know when or how their job is going to go extinct. You just need to pay attention to the changing winds of technology and adjust your ship's sail accordingly.