i think it might our way of experimenting to see who is actually good for us. becasue we find someone, we think we like them then we go out with them until we grow tired of them or we realized maybe they're not the right persone for us and then we put a mental note and say people like that may not be the right kind for me that's probalbly why a lot of people has said before "i know their type and they're not for me" or "their not the right guy/girl for me".
another way i see it is maybe the human race has to much time in their hand and need something to fill it with while i go on. here's where this is coming from, long time there realy wasnt any girlfriends or boyfriends realy. because you really mostly heard of fiences or wife/husbands. why might that be i think is beacause long time ago most people did not live past 50 i'm not even sure past 40. so really there was no real time for boyfriends and girlfriends they want to reproduce they just get maried and have kids, that's also why kids would get maried at like 16. (most importantly there really wasnt any place to go on dates no restaurents and stuff). but this edea would realy raise the idea of when did things actually start moving torwds the moder time.
so anyways the question is why do you think we date and why do you date?

