It shows maturity to not be shallow about appearances.
Matt has joined a dating site and is looking through his potential matches.
Matt wants to contact the matches to get to know them better.
Matt contacts people based on their similar interests.
Matt contacts only the hottest girls he's been matched up with.
Matt finds a nice girl who is passionate about the same hobby as him, and they really hit it off.
Matt misses out on really nice girls because of his shallow focus.