Yes, but an exclusive romantic relationship is not the only context people have sex. Romance itself is not sex, nor sex romance. Just because that's historical

Yes, but an exclusive romantic relationship is not the only context people have sex. Romance itself is not sex, nor sex romance. Just because that's historically been a very popular and socially accepted method does not mean it is today. The entire purpose of doing studies like this is to learn something new. The more assumptions we make, the fewer opportunities we have to learn.