Some of you don't understand how vaccinations work.
First of all, "80% of them" have not been fully vaccinated yet. I'm not sure who pulled that number out of their ass, but they're spreading false information. The fact is, only 1/3 of the US population has received their first shot and oly 21% of the US population has been fully vaccinated.
https://www.beckershospitalreview.com/public-health/states-ranked-by-percentage-of-covid-19-vaccines-administered.html
Second, you can still catch the virus and suffer from severe symptons despite being vaccinated. A vaccine merely reduces the chances of that happening (not eliminate them). And if you're someone with pre-existing conditions or a weakened immune system, the vaccination's effectiveness won't be as strong.
Even here in Texas, every major retailer / restaurant (including Texas-based establishments) is still mandating masks. And in work spaces, they're still enforcing mask wearing and 6 feet social distancing.