Why does my boyfriend keep checking out other woman ?

Men will always notice a girl if we think that she is attractive. It just can't be helped. That said, if he is actually staring at other women it's rude to both you and the woman. If he is trying to make eye contact with them while you're with him then that is very rude. On the other hand if all he is doing is glancing up as an attractive woman passes then he probably can't help it. I'll tell you what though, maybe the next time you are out by yourself you should go get lunch at a place where there are a lot of people. If you look around at the guys there, you will probably notice that any guy whether he is 16 or 65, with or without a girlfriend or wife present, is doing the same exact thing that your boyfriend is doing. I don't know if that will make you feel better, but at least you'll know it isn't just him.

I think it's natural to notice an attractive woman, but it's rude of him to stare and be so obvious about it. Especially since you have told him how much it bothers you, and have asked him to stop. He should be appreciating your beauty instead; It's really bad manners.

You need to reevaluate your relationship. If you have been together for two years, and have observed this behavior for that long, it's unlikely he's going to change. Plus, I sense a lot of hostility on your part with this relationship. You may be better off just breaking up and moving on. BTW, age has nothing to do with bad manners. As an older guy myself, I really cringed at those "old player" comments. (LOL)

It just shows that he is not ready to settle with one, just yet. I do check woman out, briefly and quick, but never if I am out with my girlfriend to the point that she would notice. Unless I don't care about her at all and want to drive her mad. But what's the point of having her as a girlfriend then right? If it is that obvious that even his family would tell you that he has always been like that, then I would lose him and make it quick. Love is not the only ingredient to sustain a meaningful relationship, you need more than that.

Its something we can't help. I know it sounds ridiculous, but we can only control it to some degree
I can't speak for all guy but I Know If I do it I don't always do it intentionally, And I don't mean anything by it mostly. maybe you don't have to worry. But it definitely does not mean your ugly or unattractive ,
its just somthing that kinda happens, sorry to say.

I think he needs to cut it out. While looking at the ladies is natural (I think the noticing is instinctual), if you've made it an issue by telling him about it, then he needs to rein in his roving eye. Give him some room for a quick glance (the same way you probably notice a hot guy and the way I notice a hot girl), but once conscious thought is there, he needs to return his focus to you.

Might I recommend a page out of the book of advice from don Juan? Carlos told him about a friend's out of control child. Don Juan advised arranging to have a stranger (an ugly, scary looking man) jump out of the bushes and scare the s** out of the kid. This being designed to stop the behavior by rearranging the kid's worldview. Maybe if one of these girls ( a friend of yours that he doesn't know) made a loud scene, telling that pervert to stop staring at her? Could help to rearrange his worldview.

And if not, maybe an ugly, scary looking man can jump out of nowhere....

Well, it is in our nature to look at girls passing by, and I would understand if you guys were 17. But a man of his age should be able to restrain himself from checking out girls, AT LEAST when he's with you, ESPECIALLY after you told him it bothers you.
You have to talk to him about it and let him know that you're serious - you want him to stop checking out girls when you're with him - and that's that. He's just making you feel less attractive, and if he's been dating you for two years, he should be doing the exact opposite. I understand you've told him before and you don't want to have to keep nudging him, but you do have to tell him one more time and really make him understand how it's hurting you.

I can relate to this, but what I feel even more distressing is when he takes photos of ie colleagues with his arm around these women. Then says that people in other countries are unlike British and that kissing etc is common practice in the workplace. I am gullible or what?