We'll get this out of the way first: yes, it's irritating and vaguely infantilizing when a young person makes a big show of how sassy and sharp an elderly person is. THAT IS NOT THIS. Or, if there is an element of it to be found here, I apologize. Someday old age will come for me too, and some young person will try to explain to me how great it is that I'm still telling it like it is and putting…