US children are 80 percent more likely to die before adulthood than children in peer nations. Causes range from lax gun laws to privatized health care. What connects them is a corrosive culture of individualism that makes child safety parents’ private business.
In a lot of other countries a large % can day trip to the capital for a protest. In the US that % is way way lower. So the protests have to be more spread out. And that decreases turnout overall.