If you want to read something read it, if you don't then don't.

If your on the fence then id say give it a go whenever you get into a mood to read something with a specific premise or theme.

Reading is something you should do for enjoyment or study, not everyone is going to like every book or every genre and that's perfectly fine.

The only time I think there is an issue is when people read two pages and review the book at .5 stars for any amount of dumb reasons like having a lack of character development in the first 500 words. (This happens surprisingly often on sites like Royal Road)