What do you mean “old people having a hard time admitting it’s over”? Did you totally forget this is the same way the “youth” behaved in 2016 after Trumps inauguration? Also, the electoral college hasn’t decided yet.
It’s not an age issue. It’s an issue of people believing “their” political figure is the hidden messiah that is going to save them from all their life troubles. And this issue is alive in both party’s followers.