Good grief, I said, ‘If.' I meant ‘When.'

Peanuts was populated with children (albeit children endowed with the speech patterns and often the world-weariness of grown-ups), and adults were nowhere to be seen.
[...]
As a child, I felt for Linus, whose faith in something unprovable was stingily rewarded, if at all, with the knowledge that he'd maintained his belief in the face of ever-increasing doubt.
[...]
"He was not one bit embarrassed by what the others saw as foolishness. It gave me faith as a kid—faith to believe in strange things."

full article/15 classic peanuts halloween strips.