[southernplaces7]

Because it's true in both cases. The root of the problem is something else and the thing being blamed flippantly can be much less of a worry if the root problem is addressed. People dismiss the guns don't kill people argument because it fits a simplistic ideological talking point, but it's just a basic fact that whether guns are accessible or not, the people accessing them will be the cause of fatalities if there's something wrong with their conduct and context.

With bikes, in a different context, something similar applies: What causes fatalities isn't bikes themselves but how the roads, rules, other people/vehicles and social conduct around bike use use and sharing of roads are.