While the USA continues to struggle with sexuality and uses a wide variety of techniques in an attempt to push it to a safe psychological distance, my preference is for the Swedish approach. Have sex at the first opportunity, because if the sex is bad then you're spared the wasted time of getting to know someone with whom you would later discover you can't create a properly fulfilling relationship. But as the USA tends to be the home of sexual attitudes that would be familiar to folk in Indonesia and Saudi Arabia, it's not surprising that anxiety and confusion are the predominant factors involved.