But is this purely a matter of something we do as we grow older? Monica mentions it in connection with being single, which made me remember that I was very bad at talking only of myself and my concerns at one point when I was single, living alone and lacking people to really talk to on a daily basis. Fortunately, I had a strong minded friend who very kindly pointed out this trait when we were alone together. That gave me the chance to realise what I was doing and make myself stop it.
I have always been grateful to her, because it is not an attractive habit. It might be a good thing to point out to friends who are doing this that they have developed a bad habit. None of us likes having our faults pointed out to us, but usually once the first hurt reaction wears off, we can, if we feel the criticism was justified, do something to change ourselves, but we can't correct bad habits we are not aware of having, can we?