I imagine the US times are exclusive of the “maybe it will heal on its own and I won’t need to bankrupt myself” pre-doctor waiting period. I know I needed ankle surgery for several years before I gave up and went to the surgeon. I work with a guy who has needed knee replacement for as long as I have known him (and the injuries were not fresh when I met him).
The above waiting periods are not exclusive to non-emergency situations either. I know someone who almost died trying to tough out appendicitis (the appendectomy was more expensive and complicated than it would have been if he had gone immediately as a result).
I really don’t think the above anecdotal evidence are particularly rare or unique either.
Let the public inspect the recovered wreckage. At a minimum, the Roswell stuff - if we accept the cover story, nothing in that 70+ year old junk could possibly be a risk to national security anymore. If it is still a security risk l, then it’s probably not of human origin.