Cold Approaching is "rare" during the day...thats why some girls will seem caught off guard/nervous at first(its like if a hot girl randomly showed up in ur door step naked...it'd be hard to believe), but its what they truly want in the end, its what they fantasize of.
A girl at school i go up to while she is getting food in the cafteria, one time, she'll never forget it...i go up to her...touch her arm and tell her she's cute and she is absolutely flustered about it...blushing ;-). She told all her friends of "The Guy who went up to me and said I was cute" i sadly ran out of things to say at that time since it was the first i ever did that kind of approach.
Its what we typically still talk about whenever i see her around...haha...
Its what they fantasize about, a random situation where a guy, who's got his act together, goes up to them to take an active interest in them. Otherwise, for the girls who get approached quite often, the symps who don't have as much game as we do.....they aren't competition. We got an edge.
Now about guys who cold approach but got game, there are still tons of girls to still go around, thank god most guys don't approach, makes it easier for us.