There are municipalities and states that have implemented both. Voters handle them fine.
More importantly, a large minority of people in the US who already believe the current voting system isn't fair, so why are you afraid RCV will make it worse? I think it will be the opposite, since it is likely to cool the political polarization and encourage the election of more moderate politicians that a larger majority are ok with.
Yes, I like this one a lot more.
> There are municipalities and states that have implemented both.
I think for low-stake elections that most people don't vote in anyway, experimentation is relatively safe. But I wouldn't want to try anything new with fiery federal elections, particularly not the presidential election. The risk of confusion resulting in costly civil unrest is too high.
> More importantly, a large minority of people in the US who already believe the current voting system isn't fair
Yes, but they tolerate it for the most part.
Arguable after the 2020 election.
Another important aspect: if the public isn't sufficiently intelligent, or isn't interested in such things, how did that state come about? Does the government play any role in setting educational curriculum? Does the media play in any role in what the public focuses on, considers important, etc?
A large minority of them are, yes. There's millions of people in this country that flunked their way through 12 years of math class and never retained anything more than basic arithmetic. 4% of Americans are classified as "functionally illiterate", that's 13 million people who effectively can't even read.
The point of democracy is to placate everybody, not just the smarter portion of society, so the mechanisms of democracy should be simple enough for somebody with a simple mind to understand. "Count votes and pick who got the most" is generally such a system.
You could change my mind by showing that ranked choice voting systems can be taught to even the most common of midwits.