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.
Of course not. There are sayings that age doesnt matter specially when youre in love. Age is just a number. It never signifies the maturity and stability of a person. In love it doesnt matter who is older or younger how many years is the gap. You cannot dictate your heart who you will love. Its a feeling. No one can manipulate it.