I think that part of this story is relevent to all drivers and all bikers and that is the fact that using your horn has the affect of startling someone rather than warning them. This was a 5 yo but could have been a 55 yo. This happens all of the time. I will be riding in the bike lane or on the right side of the road and a driver for some reason thinks they have to let me know they are coming up behind me by hitting the horn. I almost always jump and I get p***ed off and will give them a yell. Do drivers honk at other drivers when they approach them no, so don't do it to bikes.
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The problem with the gene pool is that there is no lifeguard and the shallow end is much too large
2013 Noah RS