i read through the first page only, so excuse me if i'm repeating!
I keep seeing people saying that Caillou's parent's are gentle- I see them as downright permissive.
I am basing this off of the (mercifully) few episodes I watched while babysitting. Especially one where Caillou had a shirt that no longer fit him, and his mom handed it down to the little sister (awesome.. reusing, budget friendly..) but he threw such a dang fit that the mom took the shirt off the sister and gave it back to him. it didn't fit him anymore and his belly was hanging out. I get that she was trying to show him that too-small clothes aren't comfortable, but what did that teach the little sister? That when Caillou pitches a fit she loses? So she should pitch fits too, and then maybe she'll get her way too?
They seem to just give him what he wants after he starts whining. I get it, all kids whine sometimes. But my ideal response to whining and throwing a fit is not just giving in. I don't think thats "gentle", I think thats permissive and not a good lesson for life.