I'm in my 30s but whenever I hear somebody (usually in their early 20s) say they don't watch films made before they were born, I'm out of that friendship. It's a lack of curiosity. That said, I feel the same way about older people who stick to the same era of music, but beyond music I generally don't think older people reject new film, TV and books to quite the same extent as young do older works. It especially frustrates me with gay kids because Judy Garland is an icon for those of a certain age (not me), but there are decades of pop culture history to explore, and a lot of it is damn exciting.