By the 1920s and 1930s, Halloween had become a secular, but community-centered holiday, with parades and town-wide Halloween parties as the featured entertainment. Despite the best efforts of many schools and communities, vandalism began to plague some celebrations in many communities during this time.
By the 1950s, town leaders had successfully limited vandalism and Halloween had evolved into a holiday directed mainly at the young. Due to the high numbers of young children during the fifties baby boom, parties moved from town civic centers into the classroom or home, where they could be more easily accommodated.
Between 1920 and 1950, the centuries-old practice of trick-or-treating was also revived. Trick-or-treating was a relatively inexpensive way for an entire community to share the Halloween celebration. In theory, families could also prevent tricks being played on them by providing the neighborhood children with small treats.
Thus, a new American tradition was born, and it has continued to grow. Today, Americans spend an estimated $6 billion annually on Halloween, making it the country’s second largest commercial holiday after Christmas.