A lot of people will just remember the images of irresponsible adults with children trespassing on the railway.
To be honest, I think that view is mostly confined to the Railway - most other people probably weren't that bothered by the fact that parents had taken children onto the tracks, maybe they were bothered about children being taken to a protest, but by and large I don't think the general public are particularly aware of, or care about, the dangers of a live railway.