If we'd have let kids eat wood and rocks and bugs for the past 30 years, like we did when we older folks were young, their immune systems would be fine. But NO! Nanny state! And this is the result. A rampant COVID.
All those kids in Africa are still eating wood and rocks and bugs. How is COVID going in Africa... Oh, it's as disaster.
Not sure about your childhood but my parents not only fed me so I did not look for food outside, they also taught me not to pick up shit in the street and eat it