I’ve had this happen to myself so often and seen it happen to others all the time, too. It IS frustrating!

There’s really nothing you can do aside from accept that they don’t respect you. Don’t take it personally, because they don’t respect anybody!

It’s usually to their own detriment anyway. For example, my husband is a professional at something that my mother asks his advice about. He goes out of his way to get her the best professional advice, yet she instead takes the advice of my sister who has no knowledge about the issue. Of course she makes a terrible choice and suffers greatly for it. Frustrating!!!