Urban dwellers evolve from fearing strangers to managing them easily

Evidence

We begin in Chapter One with the tribal human confronting, with fear and suspicion, the infrequent stranger. We end in Chapter Eight with the cosmopolitan human confronting, with ease and ability, the constant stranger. And in Chapter Nine, I shall try to draw out some of the implications of that fact. — Lyn H. Lofland, World of Strangers_ Order and Action in…, 18