You could and lots of people have. The visibility of masks (literally in your face!) tends to distract people from this, but the vast, vast majority of Covid restrictions were revoked after vaccinations became widely available, including anything in the vein of "stay home" or "social distancing". In all of the US and I think a substantial chunk of Europe, it's considered safe as a matter of policy for vaccinated people to go wherever they'd like and do whatever they want.

I mean, that's definitely not the impression I had after getting the vaccine (first shot March 24, well before anyone came up with the "Delta" name for B.1.617.2). I stayed home and wore masks just as much as I did before the vaccine. I knew the vaccine would make things safer when I did need to interact with other people, but also that it was hardly a reason to "go back to normal."

Maybe your problem is you listen too much to the mainstream media instead of doing research for yourself? The corporate interests are trying to get you to consume more and so they wanted to entice you with the prospect of "going back to normal" and consuming things you don't need.