I think ages here always matter. A woman must not be much older than a man, but a man should not be too old for a female. I think the gap in both cases (maximum) is 10 years.
I totally agree with you Sir. Maximum 10 years age gap really matters. In a relationship, if one is too old and the other one is younger, how can they enjoy the company of each other? Hobbies, routines and other stuff will be different and sometimes the differences in a relationship causes problems. A huge age gap can also be a problem when they get old. The younger will take care of the older.It sound sweet but imagine the life of the younger partner. It will be hard for him/her and she will be just sad and left alone when the older gets to the other side.