Interviews were oriented by a standard questionnaire [52], which had been previously composed and contained semi-structured [56] open (49) and closed (19) questions. All interviews were conducted through dialogs (personal interviews or face-to-face) in a question–answer format designed to maximize confidence between the interviewer and interviewee and increase the reliability of data [14] and [57]. The existence of dialog between researcher and research granted freedom to the informants to present their reports. In this process of dialog, interlocutors have a shared vision of local reality, which facilitates the relationship during an interview [58]. In ethnographic studies, the reliance between a researcher and a local member acts on the decision of ‘what to ask and how to ask’. The response of the local member to the researcher may indicate the real reason why some questions remain unanswered [59]. During an interview, the subjects try to explain their views and those of other local members [60]. When the researcher breaks down the barriers (for example, language, dressing, differences between behavior and especially the fact of not belonging to the group), between him and the local member, it facilitates the process of obtaining information. Even so, the researcher will always be an outsider to the group and therefore must carefully evaluate and analyze what is captured in the discourse of local members [61].