The GP dramatically exaggerated the state of affairs or perhaps it's how things are in their specific village/canton.
In French cantons you can bring your kids to school, you can drive them there and there are spots for stopping and all respective signage. But there is indeed a lot of very young kids walking to school.
I live in Zurich. I used to live in Pully, a suburb of Lausanne. It's much more car-centric in the French part. But at the same time our neighborhood had a Pedibus location where children met and walked to school from in a group.
In French cantons you can bring your kids to school, you can drive them there and there are spots for stopping and all respective signage. But there is indeed a lot of very young kids walking to school.