AIBU unnecessary noise from phones etc on transport and in restaurants

Does anyone else find people listening to music clips or holding video/speaker calls in public places too much, and there is very little respect to others regarding this. I have been in restaurants where I have heard two way calls being held on the opposite side of the restaurant, or people watching videoclips on public transport or in restaurants. I might add that these are not young people - they usually use air pods. I have gone over to people and asked them to turn down the volume a bit. Yesterday I was sitting next to a lady on a bus who had a child of about 4 years old watching cartoons on an iPad with volume at full blast. After about 15 minutes I asked her if the mother could reduce the volume, but she said no, because the child would cry. My grandson has always worn headphones since he was a toddler, even in the house, why can’t other children? Am I being OTT about this?