The USA had those same protests a decade before the Netherlands, but collectively decided that they preferred to blame the parents more than they wanted to restrict car drivers:

From https://www.bloomberg.com/news/articles/2019-10-08/the-hidde...:

> "all over America in the 1950s and 1960s, residents, particularly women, organized demonstrations against car traffic—and their street protests often closely resembled the Dutch Stop de kindermoord protests that would come in the 1970s. They demanded slower driving, usually seeking stop signs, streetlights, or crossing guards. Some demanded pedestrian over- or underpasses." ...

> "Many demonstrations—particularly the biggest ones—were triggered by the injury or death of a child. Against any tendency to blame the parents for permitting their children to have a life of their own beyond home and school, demonstrators consistently demanded streets that local children could use safely. And while the demonstrations were nearly always nonviolent, they were vocal and insistent, and sometimes confrontational. They included some degree of traffic obstruction, sometimes even full blockades that barred all motor vehicles." ...

> "Women bearing signs picketed streets and intersections, or set up folding chairs across the breadth of streets and sat in them. Children often participated. A mainstay of the demonstrations was baby carriages, occupied or not, which rhetorically associated the demonstrations with motherhood and with the safety of children. The technique was common enough to give the demonstrations a name: Some newspapers called them “baby carriage blockades.”" ...

> "the now-preferred path to child traffic safety: the two-car family, parental chauffeuring of children, a surrender to car dependency regardless of the costs or family income, and the abandonment of children’s independent mobility. Where streets were unsafe for children, the problem became the mother’s responsibility, and an injury or a death was the mother’s fault."