If you were an old man would you find it acceptable to marry a teenage girl? If you were an old woman would it be acceptable for you to marry a teenage boy? Can a teenager really know what love is? Do they need more experience?
Marriage can be about money or about support, does not need to be about love. If i am a rich man, I might have a young wife one day to keep me happy when i am old.
If you are a 40 to 50 years old man, you can marry a 20 to 30 years old girl, it's good in this way if you want to have children. Older woman is difficult to bear children or to have children, that the fact. Beside that just depend on individual needs and ideas.
im 25 and I would date a 45 year old woman if she was attractive. I found one attractive middle age woman once, but i didnt want to try anything, coz her husband would kill me.