I struggle with this issue since my mother was soooo bossy and intrusive: When do you say to your teen "Hey, your feet smell" or "Hey, I have a cream for that rash." Sometimes I think that I have useful but unwanted information, you know what I mean? And it is so difficult to figure out when that information should be shared with a young person (who is related to me) and when it would just be embarrassing and hurtful.
My mother used to say things like "Oh my god, that's an enormous pimple on your nose. Here, let me pop it for you" (ouch and ouch again) Yes, mom, I know I have a pimple on my nose. I know it so well that I may be made permanently cross-eyed because of it. And no, I don;t want you to touch me. So, clearly, she was over the line. BUT WHERE IS THE LINE!! Help!!