Yeah, I've never been with an older woman but I definitely don't rule it out. As for motives, it depends on the person. Some guys just want "practice" to state it politely. Others get tired of the large number of girls in their late teens and early twenties with an ego problem. Personally, I've often found that I have more in common with people in their 30s and 40s. I'm not saying there aren't girls my age that are just as mature, but they do seem to be difficult to find. Whatever the reasons may be, if all involved are legal and consenting I see no problem.