I don't follow the cancel culture surrounding this show.
I started watching this as a parent with my own son.
Maybe people today are left with the idea that cartoons *must*:
1) present academic content (literacy, numeracy, elements of STEM),
2) have characters that act as role models of what good boys and girls aspire to emulate, or
3) be the focal point of slapstick
Caillou presents a kid that can be whiny, petulant, ignorant of how the world works, unsophisticated or uneducated about how to deal with others. So what? That's what kids in real life are like. They perceive the world from their own center, navigate each day and react or respond to new experiences. It's messy. It doesn't work their way. It's scary.
When children who've watched the show were asked about aspects adults would critique about, kids identified with the character. Nothing was out of the ordinary about him.
Does he get away with everything?
Maybe the adults who have nothing better to do but trash a children's show (regardless if they don't have their own children) imagine the old ways of a spank, a belt or a ruler to the knuckles would do the trick with a boy like Caillou.
However, the parents *actually* talk to Caillou in a way he can understand:
i) they ASK questions ("Why did you do that (pinch the cheek) to Rosie?"),
ii) HANDLE the response at face value RATHER than dismiss it ("But she's a baby; she's just too little to play with you now"),
iii) EMPATHISE with the feelings behind the action ("it must be hard being a big brother"), then
iv) RE-FRAME the situation to get Caillou on board with the behavior they want ("but NOW that you *are* a big brother, you can PROTECT Rosie since she's so small...")
v) APPEAL to a child's desire to help or be of use and demonstrate the correct behavior ("Say, would you like to help me? I can't do this by myself!")
In my traditional upbringing, corporal punishment would have stopped the action immediately (may be what complainers and cancel culture people gripe about the show), but it wouldn't challenge me to reflect on my action and show me a better way.
So I'm fine disagreeing with the critics, and writers (e.g. Tristan Hopper) for their take on this show.
I wish there were more seasons / I also wish PBS didn't cancel them.