Why wouldn't you want to have a copy of all your medical records? Perhaps this isn't super useful if you've gone to the same doctor your entire life, but I've g

Why wouldn't you want to have a copy of all your medical records? Perhaps this isn't super useful if you've gone to the same doctor your entire life, but I've gone to multiple doctors (and I know I'll be going to more in my lifetime). It'll be nice to have the ability to pull up my full history if I needed to provide a new doctor with some (more accurate than memory) history.