I think people really don't know how bad it can be. I certainly didn't. I know there are lots of ways to get it, but noise is such a common one and in an increasingly noisy world where headphones are common, I think awareness is super important. More and more people will be getting it in coming years unfortunately, which is good for awareness at least.
I do see a lot more people wearing or carrying earplugs. I know many people (without tinnitus) who carry earplugs on their keychains. I did before I got chronic tinnitus. I've seen DJ's post things on social media about hearing protection. But no one ever told me when I was younger, we had no idea how fragile things were. I liken it to how now one wore ski helmets in the 90's and now everyone does. I tell all my friends about protecting themselves now.
Of course I had no idea about getting it from medication, because even googling said medication and side effects never turned up things - but honestly I'm telling so many friends about it and people will be more careful if they know.
And I had no idea how bad it could be even when I was trying to protect myself, just that I should protect myself.
Awareness and education is important.
(Same reason comprehensive sex education is important - if people don't know the truth, they can't protect themselves. We don't blame the kids who don't know better, the fault lies with lack of awareness and education.)
And of course, sometimes it's just shit luck, just like getting cancer or Parkinson's.