Only time I remember was when I was about 40. On a family vacation with my mom for a week and really noticed she needed hearing aids. She was 75 at the time. Mentioned it too her, and she got very upset, especially because her siblings were also noticing she wasn't hearing well. I dropped it. Fast forward a month, she calls me and says "I just spent $3,000 of your inheritance on hearing aids, can you come over and help me adjust my TV to a reasonable audio level, so I can have the amplification adjusted".
Of course, our parents and how they treat us and all most of us know, so we don't have anything first hand to compared them too. As an adult, and when I became a parent, I realized how my mom's mindset was to let me make my own choices, and she would support me. That became apparent when I turned 50, and my mom FINALLY felt comfortable telling me, she did not approve of my first career path choice, law enforcement. That career path slowly changed over my 4 years of College, but she never said a word and supported me.