You are more thoughtful because you don't act as quickly anymore. When I turned 70 it was the first time I felt young for my age. Fifty dropped on me like a ton of bricks - there is something about that number - but when 70 came along I felt good about it.
I can't hit on women in public any more. I didn't decide this; it just doesn't feel right at my age.
I am in an age group where it is rude to discuss money, and now it is all anyone cares about.
Age is the first limitation on roles that I've ever had to encounter, and I hit that awhile ago.