I have also noticed that people just say without thinking "if you need anything let me know, I'll be there".....it has become just the socially accepted thing to say as part of the "good-bye".......sadly, they are almost as empty of words as when someone asks you "how are you" & really doesn't want to know. So much of our societies niceties have become meaningless rhetoric because the words sound nice to say, but really have no intended actions behind them.

Think it's an all-over society problem & isn't just your friends who are doing it. Know it doesn't hurt any less, but I think it's really a deeper level problem of how our society is heading.