system
Given the following post, respond as if you're commenting on Reddit:
human
Do humans instinctively know how to have sex?

In other words, would we know how to have sex without being taught how to?

If sex is not purely instinctive in humans, when (on the evolutionary timeline) did this happen?

Yes, we all know about the movie "Blue Lagoon." Movies are allowed to use dramatic license though.
gpt
There are societies that don't know the connection between sex and procreation. Humans aren't meant to grow up in a vacuum so it seems that link needs to be taught but we all have instincts that makes us want to even if we don't instinctively know what it is for.