Age gap

Hello, friends!

Today I feel like talking about the age difference between my love and I. We don't find it to be a problem for us, but sometimes it does feel weird. Also, some other people find it objectionable (like our families).

My family thinks that our relationship might not be serious because she's so much younger than I am. I don't understand how they can think we aren't serious while we work so hard to keep the relationship working even though all the differences we may have.
My friends think I'm robbing the cradle (she's not underage, though. As I mentioned in my first post, she's 18).

Her family things that dating an older guy might not be a good idea and that she should find somebody her age. They think I might make her do things that she might not want or might not be ready to do.
 

For her and I the age gap is not a problem, but it is a curiosity: when I graduated from college she was just starting high school; I was in elementary school before she was born. Things like kind of surprise us a bit, but we love each other very much so they don't bother us.

Have you ever been in a relationship with an age gap (say, more than 5 years)? Did it make you feel weird? What did your families and friends think about it? Did it work for you or was it the reason why maybe the relationship ended? Please, let me know in the comments!