If you are just talking about the average older adult or the average angler, then the above would be true.
I don't know about your familiarity with network engineering, but it goes well beyond just the computer business and encompasses a gamut of technologies including the implementation of voice servers, data servers, phones, firewalls, routers, switches, ACD servers, ACD scripting, DMVPNs, SDWANS, virtualized environments, wireless phone integration, etc. We build entire converged computer networks for corporations. And the younger network engineers tend to be not as savvy as the 4 older senior engineers where I work. It is a matter of time spent studying, experience, and continuous study to keep up with technological improvements.
Maybe older professional anglers do not keep up with the technology in their field like we do, but I would think they have a step up on using it since they are already familiar with the older technology and should be presented with newer technologies to play with every time their sponsors develop them. Maybe they choose to just let it go after a while and not learn how to use something newer - living off their past laurels so to speak.