The problem with statements like this is that they hide actual risk. The reality is that child road deaths are dramatically down, in line with all road deaths. Roads in the 1970s were basically warzones by today's standards. The fact that 3/8 of deaths occur there today is because we have come so far in decreasing all the other sources of early death.
US child pedestrian deaths 1975: 1632. US child pedestrian deaths 2019: 138.
https://seriousaccidents.com/blog/children-traffic-fatalitie...
I had a prof once joke that they worst thing anyone could do in the fight against heart disease would be to cure cancer: By taking cancer out of the picture, the percentage of deaths from heart disease would skyrocket. But exactly that has happened to children in recent years. Childhood cancer is no longer a death sentence, so too innumerable other conditions. And when kids do get sick they live long enough not to die as kids. So the smaller and smaller number of child road deaths each year ironically now represents a greater and greater percentage of total child deaths. The reality is that kids today are safer crossing the road than ever before.
https://assets.publishing.service.gov.uk/media/5a756524ed915...
UK Child death/injury in 1979: 12,458. UK Child death/injury in 2013: 1,980.
And that is despite roads now being massive more crowded and full of larger vehicles. The total population has also increased by at least 50% since the 70s, making the reduction in net traffic deaths even more dramatic.