My point I was trying to make was that not staying relevant in tech is not unique to "old" people. The early 20s person who went deep with angular 1 may not ha

My point I was trying to make was that not staying relevant in tech is not unique to "old" people. The early 20s person who went deep with angular 1 may not have "kept relevant", but that is no reason to outright reject them (or someone 30-40 years their senior) on its own. I am sure they (and "old" people) would easily be able to get up to speed. As you said, programming has largely remained unchanged at a fundamental level.