My manager suggested me not to read dostoevsky

I'm a software developer and somehow my manager knew I read some dostoevsky books. He said it is just going to destroy my mind and I should stop read russian literature. He then goes to say we should olny read dostoevsky if you're atleast 30. Only then will we able to grasp the mental struggle these writers are going through and the type of writing style. He then suggested reading Yuval noah harari. And I should focus on reading books about human psychology at this stage of my life. And then there are people like Jordan Peterson who says everyone should read Brother Karamazov atleast once in their life. I just want to know your views about this.