1, it's numbing (ik, ik "🤓" but so what, at least I'm smart), and 2, he'a right. Once you leave school forever, you'll look back on the days it was funny. Like the days where you could make fun of a teacher, the days you could run around freely in phys ed, stuff like that. As an adult, you can't randomly start running around at a park, unless you're joghing ofc, but you'd look weird. As a kid in school, it's perfectly fine to run around alone.