Because they could get hurt and something really bad could happen also !
The correct answer should be philosophical ideas
Most of the texts were about the church and belief in god. Many philosophers of the mid ages even spoke how they could logically prove the existence of god, and many of them were supported by the church.
Answer-
As a part of Kiowa among Navajo and Pueblo people who was also being guided by his parents toward success in the larger society beyond Jemez, Momaday inhabited a complex world of intersecting cultures. The need to accommodate himself to these circumstances prepared him for the perceptive treatment of encounters with various cultures that characterizes his literary work. Examples: Momaday's formal education took place at the Franciscan Mission School in Jemez; the Indian School in Santa Fe; high schools in Bernalillo, New Mexico; and the Augustus Military Academy in Fort Defiance, Virginia. In 1952 he entered the University of New Mexico at Albuquerque as a political science major with minors in English and speech. He spent 1956-1957 in the law program at the University of Virginia, where he met William Faulkner; the encounter helped to shape Momaday's early prose and is most clearly reflected in the evocation of Faulkner's story "The Bear" (1942) in Momaday's poem of that title (collected in Angle of Geese and Other Poems, 1974). Returning to the University of New Mexico, Momaday graduated in 1958 and took a teaching position on the Jicarilla Apache reservation at Dulce, New Mexico.
#2 and #4 for sure, I'm not sure about the others. Probably not the first one.
