I am not sure how many people have read the original play called Peter Pan or the boy who wouldn’t grow up, written by J.M. Barrie in 1904, but it is a far cry from the innocent tale presented by Walt Disney.
We know from the Disney film that Peter Pan doesn’t want to grow up, but no mention is made of the extreme lengths Peter Pan is prepared to go to fight it.
Consider this extract: “The boys on the island vary, of course, in numbers, according as they get killed and so on; and when they seem to be growing up, which is against the rules, Peter thins them out; but at this time there were six of them, counting the twins as two.“
To put it bluntly, Peter Pan kills the lost boys to keep them from aging. While the film presents the view that Peter Pan is seeking eternal youth, he is, in fact, obsessed with death. This characteristic is believed to come from J.M. Barrie’s own childhood experience of losing his brother, David.