ravensheart18 said:
I think for the very young, dating someone very close to their age is a good thing. Under 16 really it should be +/- 1 year. More than that is a measurable difference in maturity that an lead to them being taken advantage of. 16-17, probably should be within 2 years. There are of course exceptions, but the 16 year old is no safer with a 19 year old than a 40 year old. Once you hit 18, you are an adult and your brain is almost done cooking, whatever works for you...
Mostly this. Once you are an adult, it really doesn't matter much. However, I would say people become adults at different ages. I don't think it necessarily happens at 18. I've met 24 year-olds whose brains needed a little more time in the oven. It really depends on the person.
I think a lot of the age gap issue has to do with societal norms. Both of my sets of grandparents had quite the age gap. In their day, women got married young to men who could support them and a family. Men like that tended to be older. It was not uncommon to have age gaps of ten to twenty years then. Go back further and people were considered adults at an even younger age. Clearly by today's standards, things have changed quite a bit.
In any case, once you are an adult, the number of years you've been alive means far less than so many other things. Maturity, common interests, compatibility, these are the things that will create a lasting relationship. A small age gap won't mean anything when you both grow bored with each other.