I think scoliosis is fairly common.
yep - but for most people it’s less then 15-20% curvature. That is the cutoff range for when a doctor will recommend any activities beyond physical therapy. My youngest has something like 8% and was having some pain, but simple stretching exercises went a long way to making her feel much better.
Yes, I think you're correct. Some must have it worse than others. I was told I HAD Scoliosis a few years back...and I'm in my 60's...