What I've personally found is that age has been no barrier at all with younger women. It might help that I look slightly younger than my age, but I rarely get shut down or rejected because of my age. For me, I've actually started finding it easier to get women as I've gotten older.
I firmly believe that if you know what you're doing with the Direct approach, and if you are a guy who has himself together and comes across as confident and mature to younger women, then you can date plenty of younger women and they will actually be attracted to the fact that you're an older guy.
Is there a cut off age beyond which it will be hard or virtually impossible to attract much younger girls? Now I do not know what it will be like or how successful I will be when I'm in my 40s or older to try and attract younger women with the Direct approach, but all I know is that I see older guys with much younger women all the time, and it's nothing new or strange at all.
I only think your age will become an issue when you're a wrinkly, decrepit old man; but if you're way off that, perhaps in your 30s or 40s, then you needn't worry about being 'too old' to attract younger women at all.
What you must do if you're an older guy and want to date younger women
You must come across as being more mature than guys her own age. You must NOT act immature like guys her age. Girls date older guys because they want the maturity those guys can offer, so if you act immature like guys her age then they won't be interested in you for very long.
You must offer her a more mature perspective on life, relationships and sex. As an older guy who understands Direct, you definitely have a more mature understanding of dating and relationships than guys her age. As an older guy, you have more life experience, including more sexual experience, you've seen more and done more in life, and you will have a calmer and more self-assured demeanour than guys her age and you are better able to deal with the ups and downs that life throws at you. Your added wisdom about life is an attractive trait to women.
When I say you need to act more mature than guys her own age, I don't mean you should be 'old and boring'. You can still be a fun, exciting guy AND be more mature than guys her age.
Should you be honest about your age?
Older guys often ask whether they should be honest about their age with younger women. Well, if it's just casual sex, especially as a one off, then I don't think you even need to mention your age unless the girl asks. If you're looking for something a bit more serious or ongoing, I DO think it's important to be honest about your age. Just be matter of fact about it; don't try to justify or explain your age and don't get defensive about it. You want to attract girls who have no problem with the age difference, so why try and hide it?
How to get past the negative thoughts that you might be 'too old' for her
If you've tried, or thought about, approaching much younger women, perhaps you have been plagued by thoughts that you are 'too old', or that she will view your age negatively, or that she will find it 'creepy' to be approached by an older guy. These negative thoughts say in your head while you are talking to the girl, and as a result you end up acting nervous or awkward around her and needless to say you don't get end up being romantically or sexually involved with her.
You need to get over these negative and disempowering thoughts if you want to be successful with younger women.
As I've already alluded to, you need to view your age in a positive light and start seeing it as advantage you have over guys her own age. Be proud of your age and life experience, and be comfortable about your age instead of looking upon it as a negative thing or some sort of disadvantage. Own your age, my friend! Women will pick up on the fact that you are comfortable about your age if you do this, but if you view it awkwardly then so will they.
Stop focusing on what she might think about your age, and instead simply concentrate on being Direct with the women you are attracted to, as you would any other woman. When you are talking to a girl, your ONLY focus should be on being as Direct as possible and seeing if there if there is any mutual attraction, compatability and chemistry there. Don't allow your mind to wander into all this other stuff like 'am I too old for her', etc.
The other thing is, stop putting younger women on a pedestal as if they are some grand prize to be won by you. In fact, you might even find that although you find the younger girls more physically attractive, once you start dating younger girls you might actually find their less mature personalities, less life experience, and less relationship and sexual experience to be a put off and you will start to see them as normal people once and for all, which will make you feel more comfortable around them.
Dealing with younger women who might be put off by your age
On some occasions, you may encounter a girl who is seemingly put off by your age. She might be highly attracted to you, but just feel worried about your age because of what her friends or family might think. Don't let this phase you. Just do your Direct approach as you would any other girl; if it pans out, great, if not then simply move on to another girl.
If a younger girl challanges you about your age, just ask her 'Do you like mature guys, or do you like immature little boys?'. No girl will ever say she likes immature little boys, so when she says she prefers mature guys then you've hit the ground running.
If you are a guy over 30 who prefers younger women, don't be ashamed or feel bad about it. Just approach whoever you like (keep it legal though, which should of course go without saying), in the same Direct manner you would any other woman.
The bottom line is age has nothing to do with it if you know what you're doing, if you're a great guy who has his stuff together, and if there's a mutual attraction between you and the girl(s) you date.