I don't have much experience with people (there are some in ireland but not many in my town). When i was in london however there were loads and loads of people and YES they are scary... I have found them rude,they would shove past or be loud and aggressive and boisterous, when around thier mates.. I just count myself lucky that i don't live in a saturated neighbourhood... EDIT: Just to add,to answer your question,it is completley WRONG of society to expect you to not fear them and think their behaviour is ''cute'',its unacceptable at best if anything... There are a lot of stupid double standards that permeate our societies..Just this week in ireland we have now thankfully introduced in our schools for teenagers ''black history month''...