文化上的事情不太好说，教育的过程就是个洗脑同化的过程。但当时寄宿学校的环境确实比较恶劣。

Doctor who blew whistle on atrocities of residential schools honoured in Ottawa

Dr. Peter Bryce exposed high rates of illness, deaths among Indigenous children

Doctor who blew whistle on atrocities of residential schools honoured in Ottawa | CBC News