From CNN.com, by a 12-yr-old author: Yep, and this is one of the better ones: to call someone “childish” is an insult, and it insults the mature child too. [Added: I was thinking that “pc” is the same as “what is proper,” and I was not being sarcastic, and I agree with this 12-yr-old. To say someone is “childish” is an insult to children.]

The traits the word ‘childish’ addresses are seen so often in adults that we should abolish this age-discriminatory word when it comes to criticizing behavior associated with irresponsibility and irrational thinking.