Just because I know something doesn't mean it should be known. I usually don't have any insight into what led them to their question or statement toward me. I just know that there's something in it that might not feel easy to navigate. Much of what is worthwhile is not easy.
I am always surprised by what strangers are willing to say, especially in front of my children. Most people mean well, but Miss Manners could have a field day with what I have encountered.