I believe that it has been scientifically proven that girls develop and mature fatser than boys. For any relationship to work the partners have to be evenly yoked, meaning they are on the same level in most areas. Except for the few exceptions, a younger guy is not gonna be serious about settling with an older woman becuase they are trying to catch up to u. So ladies, if your serious about selttling down and want your relationship to work, it would be my advice, to go for guys the same age or older.