[FatherofFive]

said there is no 'right time' to have sex with a new partner and going for it on the first date can quickly determine if you want to continue the relationship

So instead of dating to see if you want to have sex, you have sex to see if you want to date. Makes sense.

[Jolla]

So instead of dating to see if you want to have sex, you have sex to see if you want to date.

I think it is the Icelanders for which that is exactly the case. Sex first to see if you like each other.