I believe David's a minor, so no (he used to be but then they changed his age).
Oh I see...but if that's so, (in Maccon's route) then I wonder why he literally gave a condom lol, if you see what I'm getting at
I mean from what I recall he's 17 so it's not like he's completely clueless. He probably just wants his brother to use protection (and more or less just another one of monchi's gags).