Age signifies so much more than just a number: it can reflect your maturity, your stage in life, and your experience. At the same time, age can be deceptive.Does it matter if men date younger women? If so, how much of an age gap is an acceptable one?
If you mean by date is just to have someone with or get into a relationship, I don't thino age would matter but if we're talking
Socially:
There will be people who will judge your relationship especially if the difference of your age is very evident physically. Your girlfriend might be perceived as a gold digger or something.
Biologically:
If you're planning to conceive a child and let's say the mother is around 25-30 years old and the father is arpind 40-50 years old, chances are your child might have abnormality. There are several researches that states the older the couple would conceive the greater chance for the kid to be born with mental disorder or have physical anomally.