is it a stereotype of girls just going for 40 year old men for there money

Yes, the stereotype that younger women are primarily interested in older men for their money is a common one. This stereotype can be found in various forms of media and cultural narratives. However, it's important to recognize that stereotypes often oversimplify complex human behaviors and relationships. Many factors contribute to the dynamics of romantic relationships, including personal values, life experiences, and individual circumstances. While some people may be motivated by financial security, many others seek emotional connection, shared interests, or companionship, regardless of age. It's crucial to approach individuals and their relationships without making blanket assumptions based on stereotypes.