I stopped by an ATM to pickup some walking around money. My 25yo son said "that's old school" when I ask him what was old school, he said "cash"
Listing to an AM radio financial adviser (who's advice I would never take), he told how to check his Facebook and Twitter, he then said "if your old school, my website is still up".
A couple of years ago a young hotshot racer was turning 25 during the Monte Carlo Grand Prix weekend. A reporter ask him if he was going to party in that glamorous city. He said "no, I going to bed early, I can't party all night then drive a race-car down narrow streets anymore.
A million years ago Howard Cosell was interviewing an 18yo gymnast who had just won the World Championship. 70yo Howard ask the kid "by the time the Olympics come around in two years you'll be over the hill, what are you going to do with the rest of your life"