Why do people say "kids today will ever understand XYZ" as if they weren't born in a completely different era from them?

Like duh! They come from a completely different time period from you.

Why do you expect them to understand?

Why don't y'all just make friends with people who do understand (A.K.A. your own generation) instead of expecting everyone to relate to you?

We're not that special just because we happen to know something that someone else doesn't