There is nothing to suggest that these people are other than a minority and frequently they are in groups that are least likely to get the virus, so some how miss it.
The thing that worries me, is the health and welfare of all those who seem to be in a high state of anxiety all the time about Covid, whether they are in the high riskgroup or not and seem to grab every negative point and become more and more anxious.
I am not saying that the current situation is not worrying, especially for those who are most at risk, but there comes apoint where for the sake of ones mental and physical health you need to stop burdening yourself with everyone elses actions and disengage from what does not affect you and your loved ones immediately. Yes, if your neighbours action put people already at risk at greater risk, then report them, but if they are only putting themselves at risk, step back. For your own sake.