Generally, When man grow up to 30+ , they become more attractive and wealth than the young guys. So they don't worry about their marriage and wait untill they get enough money and successful career. In fact , if they want a sexual contact when they really need it before they get married, there are lot of prostitues. physically , the men can make sex without love but the women is different. And the same time, the women become less attractive than young girls as the age increasing. Man and woman need sexual life in different ages. when the man is about 16-30 and the woman is about 30-40, they need sexual contact most. Sorry I tell it so directly.That's a real life, I just tell the truth. I don't mean to hurt any people.
If you want a single life, that's your choice and I hope you can hold it. But the same time, you should develope your knowledge and increase your sex charm. When someday you meet a good guy you really want, he will not say "sorry, you are not the girl I seek".