The reason people don't change is that

they refuse to accept responsibility.

They may :

Lack the desire to change .

Lack the discipline to change .

Lack the belief they can change .

Lack the awareness for the need to change .

人们不去改变的原因是因为他们拒绝负责任。

他们可能：

缺乏改变的愿望；

缺乏改变的训练；

缺乏改变的信心；

缺乏需要改变的意识。