I do not think that the nerve of the modern child is any too good; how can one expect it, brought up as they are amongst all the horrors of civilization. The 'daring' child who used to be common enough, is seldom met nowadays.
Humor simultaneously wounds and heals, indicts and pardons, diminishes and enlarges; it constitutes inner growth at the expense of outer gain, and those who possess and honestly practice it make themselves more through a willingness to make themselves less.