80/20. You parents might be not be as up to date as you, but they may give you good timeless advice. They are in the real world, not the "surreal teen world". They had been teenagers just like you and you don't want to know what they did in high school, but they had learned from their mistakes which makes them the stodgy parents you have today. Just wait, you'll be買粉絲e the stodgy parent too when you have your own kids.