They never realize that they are changing themselves to conform to another group and not even choosing to just be themselves. Go figure.
This reminds me of the Chovas Hatalmidim:
http://hebrewbooks.org/pdfpager.aspx?req=3893&st=&pgnum=31
???? ?? ??? ?? ??? ?? ????? ????? ?????? ??????? ?? ?????. ?? ?????? ?????? ??? ?????, ??? ????? ?????.
????? ???? ??? ????? ??? ?? ??? ???? ????? ??? ????, ?? ???? ??? ????? ?? ??? ??? ???? ??? ?????? ?????.
Translation:
Take a look how strange it is that someone would be inflicted with both opposite shortcomings, the lack of self identification and haughtiness and being too proud.
Since he doesn’t actually think for himself, and he’s merely bowing to the whole world, he took on this behavior as well. He then rebels against his teachers and parents.