Where I'm at, if you're vaccinated, then there's no need to wear a mask anymore, and that's in accordance with all the guidelines.
BUT....if you're not vaccinated, then the guidance is to wear masks indoors, and I think that these are the people who ruin the whole situation. If we're going on the honor system, then anyone who violates that is a Public Nuisance, although unfortunately there appears to be no way to hold them accountable, or limit their access and right to do whatever they want.
It's like someone speeding down the freeway, going 30 mph over the limit, but since the cops are all on vacation, it's kind of like, "oh well."
I still worry that the sudden lifting of all restrictions is going to hurt vaccination rates, and we still have a ways to go. Both as a State, a Country and a World. If CA is now open to visitors from other states, some with low vaccination rates, then we continue risking spread of the virus. Which brings us full circle to the real problem, and that's people who are not getting vaccinated, even though they can.