Caillou isn't a great representative for 4 year old children. He talks like a whiney 2 year old and controls his parents through demands and tantrums. http://socialstork.com/blog/caillou-bad-influence/ My parent followers feel strongly about Caillou. Some of their comments are that he is whiney, brat, bossy, uses bad words like hate and stupid, parents do not discipline enough, safety issues, and so much more! Check it out to see some clips and some more reviews.