I belong to Generation X (real early part) and from what I see even the younger members of the US Government seem to not understand technology at the level I do. Facebook has a purpose though I never really regularly used it. I agree we have too many fossils in government who think a wired telephone is high tech but given how sheltered so many of them seem would the younger ones really be any better?
It might be a case of laziness and entitlement. Most Members of Congress, young and old, come from the wealthy entitled families. Why bother learning to set up your own iPhone and WiFi when a secretary or campaign aide is supposed to do that?
Why bother learning how to properly compose a responsible, sensible, accountable social media post.... when all you have to do is order a Washington DC intern to do the work?