There's been more than enough time & shots given for me to not be hesitant. If they'd asked me to be a tester I would have. OK, you're not against it.
But you didn't answer your own statement of "Yeah that's an established vaccine. I can see why people would be hesitant about the Covid vaccine.". I don't see at all why people would be hesitant other than from ignorance or some condition that could cause a severe reaction. So why would they rationally be hesitant?
I think I've been very clear. I'm not sure what stumped you, but here goes, again: because it's still an unknown quantity to the masses. And to most doctors. I have 3 doctors and 1 nurse practitioner in my family and extended family. They all, but one, say they don't know enough about the vaccine to comment on it. My brother in law's brother (one of the doctors) told me it seemed like a rushed attempt. I don't know. I'm only a machinist.
And it's not like big pharmaceuticals are seen as trustworthy folks. I can see why people could be leery of a brand new vaccine. Ever seen how many drugs wind up with lawsuits? Also, they don't personally know people who've gotten it and been helped. Or not had an adverse reaction. It's still new. That's how it looks to most people. And it's not some unreasonable fear like a zombie apocalypse or vampires. I can see why people could be hesitant to jump right into it. If you don't, that's cool. Go get the vaccine and be secure in your decision. But let's not act like people are crazy for not 100% buying into it.