Why are so many people hung up on age?

Why are so many people hung up on the age thing? If two people are compatible and have fun what's the problem? Some people would give up on a chance of happiness because of an age difference? They would rather be treated like crap or be miserable with someone in their age group?

My last girlfriend was 18 years younger then me.. I know what you are thinking "what could they possibly have in common " ... well I have news for you. We had so much in common it was almost scary. We had such a great time together.. she ended up getting her dream job in a different country so that's the only reason we broke up because it would be silly to live in two different countries and be together.. we are still great friends to this day.

Why are so many people hung up on age?
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