I never intended to insult, it's just my honest opinion that "talking to randoms" is not the right thing to do unless you really need to (cause you're lost or something). Or maybe it depends on how "random" is defined. I wouldn't call cashiers at a store or restaurant "randoms" cause talking to them is plainly routine, you don't need to get to know them and they also wouldn't want to chat just for the sake of it!