Wow, I feel incredibly bad for that kid. I'm all for families making the decisions they think is best for them but that family has no perspective IMO. I personally think that's abusive, but its their choice.
I guess I live in a different environment because I'm not seeing this significant population that is terrified among my family, friends, acquaintances, employees, associates and community. Other than Dad4 and the examples you cite I haven't heard of anyone that terrified. I have a couple Facebook friends that are a little over the top, but they appear to be virtue signaling more than anything else.
In San Diego people seem to be exercising common sense in public but they don't appear to be hiding. Granted I guess I really wouldn't know if someone is hiding.