I’ve been preaching for years that “stranger danger” has done massive harm to society, far far more harm than the bad actors they’re trying to save us from would have done.
Teaching children that all people are inherently bad and you should be afraid of anyone you don’t know sets the tone for how they are going to relate to other people for the rest of their lives.
In my experience most people are good and helpful, I’ve had far far more people be kind to me than harmful or malicious.
Mr. Rogers taught me to “look for the helpers” and that also told me that there are always good people out there who are trustworthy. We need to go back to that.