Age disparity in sexual relationships is the difference in ages of individuals in sexual relationships. Concepts of these relationships, including what defines an age disparity, have developed over time and vary among societies. Differences in age preferences for mates can stem from evolutionary mating strategies and age preferences in sexual partners may vary cross-culturally. There are also social theories for age differences in relationships as well as suggested reasons for 'alternative' age-hypogamous relationships. Age-disparity relationships have been documented for most of recorded history and have been regarded with a wide range of attitudes dependent on sociocultural norms and legal systems. Data in Australia  and the United Kingdom  show an almost identical pattern.
As a result, they seek out older men who act with more sophistication and class. These men may be worldly, financially secure, and over many of the games they played in their younger years. On the other hand, the women might be feeling the maternal instincts kicking in and want to start a family soon.
Why though? And you know what that means? Dating younger men is becoming more and more popular.