Parents raise children and inherently "brain washes" them to a degree. We pass on our ideas and beliefs naturally. However, we must be able to and encourage them to be their own person. For example: My son attended a private school that was religion orientated and going to church was a part of our lives. I encouraged him to form his own beliefs and ideals. Now he is an anthiest.
Honestly, I can understand someone telling some one else a lie in order for them to think that the past was better than it was. Perhaps a form of self preservation. Is it right? That is a very tough question. People want to be seen in a positive light.