You won't understand until you get much older, your joints start to hurt, and your sleep becomes miserable. When you try collagen then in a sufficient amount, e.g. 15g/day, only then might you understand.
This is, nine times out of ten, a bullshit diagnosis, and here is why.
Providers have systematically and knowingly misidentified arthrosis and other degenerative diseases. Because guess what? You can medicate and relieve inflammation, but -osis is not curable and very difficult to heal.
So rather than tell the truth to elderly patients with degenerating bodies, the providers lie and say there is inflammation. Then the providers recommend a panacea, literally, that matches that bullshit diagnosis, and the arthrosis patients go on their merry way with “arthritis” pills in their pockets.
It is an extreme disservice to suffering people, but that is how capitalism and health care work.
I’ll tell you what’s unnecessary is prickly commenters who call out ordinary English writing for no fuckin’ reason except to smell their own fuckin’ farts, so MYOB