Less junk food, less automation. Kids especially, and even adults played outside, played sports. TV was only 8 channels over the air. Cable was a luxury item. Almost every kid got to and left high school with a base fitness level much better than today. Even though i was a nerd, knowing I was going to college for STEM, I was a three sport varsity athlete because sports or theater were the only after school options. Soon as anyone heard me sing, they pointed me to the gym.