So many people are unhappy with life they hope the other side is better.
The only real positive ting religon gives to humans beings is a sense of community and belonging.
We evolved as social animals whose survival likelihood was increased by our belonging to groups. The need to belong is pretty much mostly hardwired into us as an animal instinct. Religion fulfills the need to belong, but at the costs of individuality and freedom of thought.
I honestly cannot think of one advantage to religion. I believe it clouds minds and causes division and hate.