I think people who have had suffering in their lives learn a lot about themselves, I think they can grown more and learn empathy and more about understanding and communicating with all sorts of people. Or at least that's my experience. I think every human suffers somewhat and some point.

While I wouldn't ever be glad I've suffered, I am able to take positives from the things I've learned along the way. I won't be volunteering for an extra side of suffering in my next life tho!!