Only make those efforts if it’s valuable to you. Nobody else gets to dictate how you express yourself. I’ve gone to pretty large extents with some extended family members when they commented on it often. What I would do if asking them to stop didn’t work - I would pick one of their struggles or “oddities” and bring it up just as often as they did with me. Some ones I used that tormented my family members and made them understand: “You should dye your hair and make an effort to look younger”, “You should slouch less and stand up taller more often”. They will get the picture pretty quickly.