You Already cannot fly in Europe some places if you are not vaccinated

I was speaking with a friend of mine today that was talking about this. He was saying that it is likely here in the U.S. that by August or September you won't be able to fly commercially unless you are vaccinated too. The logic goes something like this:

When 70% of the people get vaccinated (and some states are already there) these people tend to be wealthier because it is more the poorer people who aren't getting vaccinated. Money talks and at 70% vaccinated those people will simply not be willing any longer to share the airplane with people not vaccinated which will require everyone to get vaccinated here in the U.S.

I'm thinking he is right about this because this is already starting to happen in Europe. 

I suppose this wouldn't stop people from getting pilots licenses and buying their own small planes though. So, if you want to get somewhere faster this would still be an option. Or you could hire a private jet and gather unvaccinated friends to share a private or chartered jet for non-vaccinated people too.