I think people are so bent on finding the one that they limit themselves. They want the one to be perfect and meet some ideal in their head, but that's not really how it works. When you're faithful to one person it's because you love them, not because you have found the only attractive person. I think as many people get older they realize that lots of people of a wide variety are attractive and wonderful, and finding one to love isn't about narrowing down the playing field, it's about committing to love after you find it and making the connection grow and last. When people realize this they do end up seeming more mature and empathetic, and to that end some guys do grow up... However, guys who are over 30 who won't date anyone over 25 seem to be resisting change. There are some people who can only view the person they're with as a reflection of their own success or failure, which is sad... It's not about what you can get from someone, it's about what you can give them, and material gifts matter the least when it comes to love.