For many children in the United States, there are several passageways into adulthood: at 21 you can legally buy and drink alcoholic beverages and smoke cigarettes, at 18 you can buy a gun or a lottery...

In past years, the evening of Oct. 31 found kids in Walla Walla trick-or-treating in the streets surrounding Whitman. On campus, professors, families and students mingled in halls outside decorated dorms....