Why does my friend hang out with these ppl?

maybe dave sees everyone as normal, he doesnt discrimanate, he doesnt categorize people, he doesnt see everyone as in cliques, everyone is the same to him, he is blind to the grouping of outcasts, geeks, jocks, snobs, and others, and that makes him the coolest out of anybody else, im the same way, im friends with everyone, i dont care what group you are put in, if i can be friendly with you, and you, the same with me, then its all good