Arthur Brooks in The Atlantic:
If you are a parent, your greatest fear in life is likely something happening to one of your kids. According to one 2018 poll from OnePoll and the Lice Clinics of America (not my usual data source, but no one else seems to measure this), parents spend an average of 37 hours a week worrying about their children; the No. 1 back-to-school concern is about their safety. And this makes sense, if you believe that safety is a foundation that has to be established before dealing with other concerns.
You can see the effects of all this worrying in modern parenting behavior. According to a 2015 report from the Pew Research Center, on average, parents say children should be at least 10 years old to play unsupervised in their own front yard, 12 years old to stay home alone for an hour, and 14 to be unsupervised at a public park. It also shows up in what parents teach their kids about the world: Writing in The Journal of Positive Psychology in 2021, the psychologists Jeremy D. W. Clifton and Peter Meindl found that 53 percent of respondents preferred “dangerous world” beliefs for their children.
No doubt these beliefs come from the best of intentions. If you want children to be safe (and thus, happy), you should teach them that the world is dangerous—that way, they will be more vigilant and careful. But in fact, teaching them that the world is dangerous is bad for their health, happiness, and success.
More here.