[notjosh]

I work for another startup in the same space. (Hi from Clue!)

> You're talking about people that are having intercourse, the least you could do is treat them as the adults they think they are.

That's pretty much exactly the point here though, no? I think we all agree it's reckless/irresponsible to make any decision without being adequately informed. All these apps can do is tell you "hey, we need more data from you if you want us to be accurate". Scientific terms don't need to be bandied about, but they can be tucked into KB/FAQ pages if people really want to delve. It simply becomes a UX issue at that point - driving people into regularly entering necessary information for accurate insights.

Our product tries to be very matter-of-fact, and treat our users with dignity and respect. Viva adulthood!