It's an important point. To use a nutrition metaphor, there are many new easily-available empty calories at home these days, that weren't previously available. The web. Online gaming. Social media. Streaming.
Yet venturing outside into a social environment delivers a higher minimum level of nutritional value. You see other breathing humans, experience empathy and nature, and move your body.
And critically... exercise being comfortable with being uncomfortable. (Aka, life)
One of the quickest paths to crazy these days is becoming too comfortable in a stable, static, self-reinforcing life. You don't get any feedback that you're drifting pretty far off the median. (I mean, has anyone actually seen the Earth's curvature...?)
Reality has a well-known bias towards reinforcing common sense and reminding you when you're wrong.