ffs you're impossible Wibble. I'd rather end the discussion on a point of agreement.
I agree with you that media organisations have proven to be spectacularly effective at spreading disinformation in recent years on issues tainted with politics, and they could have a huge impact here. There's one curiosity in the vaccine data so far: about two-thirds of 65-74 year olds in the UK want to get it straight away, and almost all of them want it eventually. While the vast majority of 65-74 year olds in the US also want the vaccine eventually, less than one-third want to get it straight away. A lot of them mention the politicisation of the process and distrust of institutions.
So while there's a lot of young people across the world that are saying they're hesitant, that can be mostly academic: when they're allowed to get it, enough information will have filtered through so that they might well have overcome that hesitancy. But it's entirely plausible that in the next month there will be a lot of older people in the US that will be offered the vaccine, and they're going to come out and say "I want to see Joe Biden take it first live on TV, then I'll take it". And I don't know what Fox News have been saying about the subject recently but they will surely play a significant role in shaping that demographics' perception of vaccine safety, and I really don't know how they're going to wield that responsibility. If they misuse it they will unquestionably be creating the environment for avoidable deaths in the very near future. It could be a warning signal to the world that ends up eroding vaccine hesitancy, but it'd be a particularly grim test case.
Then on social media, we definitely do have
reason to believe that it has an impact on vaccine hesitancy - albeit the data's iffy. It's hard to know what role that's playing currently but it is a fact that young people spend more time on social media than older people, and younger people are much more vaccine hesitant at this point in time. Seperating the social media impact from the actual personal risk assessment is basically impossible at this point, but it does seem plausible that social media has already made people more hesitant about this particular vaccine, and could build up enough momentum to prevent enough people from getting the vaccine. It's the first big challenge for vaccines vs. online misinformation. I'm a little worried about that, truth be told.
In any case, I can safely say I don't know what the outcome of any of that will be, nor do I have a deep understanding of what's driving it. I just have a semi-educated opinion.