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The job of raising children is a tough one．Children don't come with an instruction manual(说明书)．And each child is 　　1　　．So parents sometimes pull their hair out in frustration(挫折), not 　　2　　 what to do．But in raising children－as in all of life－what we do is 　　3　　 by our culture．Naturally then, American parents teach their children basic American 　　4　　．To Americans, the goal of parents is to help children 　　5　　 on their own two feet．From 　　6　　 each child may get his or her own room．As children grow, they get more 　　7　　 to make their own choices．　　8　　 choose their own forms of entertainment, as well as the friends to 　　9　　 them with．When they 　　10　　 young adulthood, they choose their own jobs and marriage 　　11　　．Of course, many young adults still 　　12　　 their parents' advice and approval for the choices they make．But once they“leave the 　　13　　”at around 18 to 21 years old, they want to be on their own, not 　　14　　 to their mother's apron strings(围裙带)．The relationship between parents and children in America is very informal．American parents try to 　　15　　 their children as individuals－not as extensions of themselves．They allow them to achieve their own 　　16　　．Americans praise and encourage their children to give them the 　　17　　 to succeed．When children become adults, their relationship with their parents becomes more like a(an)　　18　　 among equals．But 　　19　　 to popular belief, most adult Americans don't make their parents pay for room and board when they come to 　　20　　．Even as adult, they respect and honor their parents．