Indocrination exists but its just the wrong way to think about it is all. People want to fit in, in an effort to fit in they willa dopt the opinions of the group that are central to that group. That is indotrination. But a better way to view it is not indoctrination, its people who have a social void and a desire to feel part of something good and grand, and larger than them that inspires them. It is that desire that leads to what people call indoctrination. In other words, indoctrinated people are the direct result of the flaws in the community they come from, otherwise those communities would have been what indoctrinated them instead since they would have been happy to fit in with their home community in that case.