Everything you say is correct—the problem is, no one will listen.
You're right. Not that I want to change anyone as these people need to experience what they do is not good.
But there's a special category of people who, even at 70, continue to make stupid mistakes and actions—life hasn't taught them anything.
I know what you're talking about, and unfortunately there are so many. I see them closed in their small, narrow mind, still thinking they know all and they know best, yet doing one stupid thing after the other. You're never going to change them. Those who think they are the smartest, are the worse.
Oh well, we move on and limit our interaction with them. I see no point in wasting time with these people.