Obviously I cannot offer responsible advice, but I can offer my own experience ...

I went over my handlebars at approx. 30 mph, rolled when I hit the ground, and separated 6 tendons in my left shoulder in the proccess. This happened on a steep city street and I had to limp my broken self to emergency about a mile away. They told me at the time that surgery would not repair the injury and that I should let it heal naturally. It took a good 18 months before I was pain-free. At the time I could not lift my left arm above shoulder height.

It's now been approximately 20 years and the shoulder works well enough for the most part. I can no longer participate in archery or weight-lifting, but as long as I don't overdo it, I really don't notice it too much.

Just left with reduced motion, popping and clicking, and maybe 50% strength compared to what it was.

Life went on and I learned to work around my limitations. Good luck with your choice and recovery