The story line makes no judgment but frees the reader to decide.

It is the responsibility of the reader to decide whether a group is appropriate for his/her needs.

Whether they are "normal" is perhaps a matter for each reader to decide.

Ultimately, it will be the readers to decide how books are read.

It's for the reader to decide whether he/she believes it, or study it further.

Whether those are pros or cons, I'll leave to the reader to decide.

In the spirit of Santayana one could say, that is for the reader to decide.

"I leave it up to the reader to decide if the world would be a better place if this man hadn't lived."

However, this debate always comes down to personal opinions and it is up to the reader to decide what they would like to believe.

Then it is up to the reader to decide which narrator seems most reliable for each part of the story.