My mom was one of those people that talked to people everywhere we went and seemed to know someone everywhere too. As a very shy kid I was constantly mortified but I had the startling realisation several years back that I'm that person now just starting conversations all over the place. Oddly enough seeing your comment I think the change happened when I moved to England in my late teens but I didn't recognise it until my 30s. I do wear my airpods a lot on walks these days but I always silence them as I approach people and regularly take them out if it seems like a conversation is about to start.