I am older (64) and was having shoulder pain from my PRS SE Custom when playing with a strap. (Which I always do; play with a strap, I mean.) So I took a chance on one of these harness straps and must say it’s been a big help to me.
They aren’t cheap and take a little getting used to but it is something I would buy again.
If anyone has any questions about them, I would be happy to answer them as best I can.