@Loucille I agree with your friend.
I'm a straight woman and not overly sexual. (I can and will be with the right person.) I no longer see the benefit of casual sex or ONS's. If I get the urge (and I do), I can sort myself out. If I don't want to have sex, I don't have to. I can go weeks without feeling any arousal. I can be aroused a lot.
@SaraSunny For me, I think it would be a mistake as I can't imagine missing on out on the initial spark, attraction and the giddiness of a new relationship. - for me, the initial spark isn't physical or sexual. It's not "he's hot, I want to shag his brains out." He could well be incredibly attractive and I can appreciate that but it's not until I start chatting to him that I'll feel a spark (or not!).
I've had a man tell me that men and women don't share the same hobbies and that sex is the only thing that bonds them. It's true to an extent, we don't always share a hobby but I find it sad that they think sex is the only thing that bonds them to their partner. It reduces your relationship to nothing but sex. If that works for both parties, then cool. I personally want more - and I think that bond is created by more than just sex. It's everything else you do together. Taking trips, discovering new things, silly random things, private jokes, learning a new skill, just being together. Etc etc.
I think creating a bond that goes beyond sex is much more important. I don't think men want that, but maybe they would be happier if they did.
BTW, I'm not saying sex isn't important. It absolutely is. But for me it's important with a man I have a good, solid, all-round connection to.