Hairdressers spend their lives putting people at ease by talking to them about whatever they want to talk about. There is no wonder that the profession attracts people who like talking about a wide variety of things.
Honestly, I think they are just better at pretending to be interested and letting you speak. People tend to think a conversation was great if the other person gives them positive feedback. My girlfriend is a hairdresser and she does this quite well, and she doesn't care about at least 75% of her conversations, but you'd never know it as a client.
