I'm older. I get frustrated. But I do know why. You're right, though - many don't. I find the whole thing a neat example how not every change is undilutedly for the better, and how we tend unwittingly to accept those creeping degradations. Being old and crotchety, I could name examples...

I would be shocked to find many young people with such intricate knowledge of the inner workings of phone systems. This is not something taught in school so I don't know what age has to do with it.