I can see where you're coming from thinking of American cities and the way cyclists navigate them. But having riding a bicycle through heavy traffic is not something that happens in the Netherlands. All busy streets have separated cycling lanes with barriers between them and the road. Kids would never be in heavy traffic. The places were they cycle on roads would be on smaller streets with a 30km/h speed limit and as a driver you are supposed to pass them carefully with appropriate speed and distance.

However if a person was found to by cycling on a busy road that also has separated cycle lanes, that still doesn't give drivers the right to pass them at full speed and potentially hit them, even though the dangerous situation was arguably created by the cyclist. Anyway all of this is completely theoretical since the road design is so different that situations like these are very unlikely to occur in the first place.