Sunderland boss Roy Keane attempted to sign former Manchester United teammate Teddy Sheringham in January.
Asked about Keane's WAG comments, Sheringham added: "Of course it's a valid point. It's a fantastic point. The question he is asking is: what do they want to do with their life? Do they want to be footballers or coast along? Do they want to play for a fantastic football club like Sunderland? Or do they want to wait round for a club in London so they can go shopping on days off?"