Jessa Crispin reviews Sex At Dawn. She found it lacking:
If there’s something to take from Sex at Dawn, it is simply that there are thousands of ways to be sexual creatures, as well as the reminder that societal norms flux with time for a reason. Did agriculture (and monogamy) come with some baggage? Absolutely. But did it also make us literate and productive, technologically advanced and romantic? Hell yes. It is possible that this particular mode of being no longer serves us, but neither will getting starry-eyed about better days long since past. There’s nothing progressive about this totally old-fashioned idea that women’s sexuality is the victim of, and secondary to, men’s sexuality. You can unpack the baggage from agriculture, and hunting-gathering, to figure out a new way to move forward with relations between men and women. But only if you’re honest about the contents good and bad.