I didn't have to wait at all. There was a noticeable increase in thromboembolic events after COVID-19 vaccination started in my city. Plenty of people were saved by friends in the emergency room.
The problem of course is not the vaccines, it's this insistence that they are risk-free. They are not. There is no such thing as zero risk in medicine. When you claim something false like that and people start to notice events that contradict your words, they will no longer trust you.
This is why the cost benefit analysis must be detailed and presented clearly to people. They should make the choice of their own accord. Trying to impose it on them is how you get "anti-vaxxers" who no longer trust anything you say. I don't blame them.
This is not even a modern phenomenon. Over a century ago there was a revolt in my country over forced vaccination.
https://en.wikipedia.org/wiki/Vaccine_Revolt
> To eradicate smallpox, Dr. Cruz convinced the Congress to approve the Mandatory Vaccination Law on October 31, 1904, authorizing sanitary brigade workers, accompanied by police, to enter homes and apply the vaccine by force.