The "issue" I've heard with simply referencing fatality rates is that the fatality rate does not equally apply to all age groups/risk factors.

So anyone under 30 has a dramatically lower chance of dying due to covid, and therefore would likely have a higher risk of a serious side effect when compared to the risks of contracting covid.

It's an interesting dilemma, for the good of public health you have to have certain populations actually increase their own personal risk, at the benefit of the majority overall.

Not sure if you intended to reply to me as my comment was about H1N1 (which I think had an age bias in the other direction)