Yes, we are! I've just started switching over to single spacing after my husband showed me several articles proving that single was correct. That was against everything I had learned. It blew my mind, honestly.
You know what else blew my mind? I was in the car listening to the classic rock radio station. A song by Nirvana came on. I scoffed, "What??! This is on the classic rock
radio station? As if! Everyone knows classic rock is from the 1970s. That's what they played when I was in high school." Then I realized that I was in high school in the late 1990s. The 70s were 20 years old. Just like Nirvana is now.