Secondly, even if the problem cast above would turn out to be supported by some ensuing evidence, a critical problem still remains that the author assumes that, which is definitely unwarranted, that it is the children isn’t reared by the whole village that correct. But the author doesn’t offer us any precise evidence to prove this perception, he merely make conclusion based on the unfinished study, what’s more, no proof is listed that the interview-centered method is more accurate in this issue or whether they take some measures to ensure the impartiality of the study, the reliability may be weaken by the interviewers’ own sensibility, they might imply or lure the children to talk about their parents. Pursuing this line of reasoning, it proves to be the author's responsibility to show us more cogent evidence so as to pave the way for a more tenable argument.