Americans, in general, have almost no discipline. Californians are worse.California blew it. They were doing really well up until early Autumn. Thanksgiving takes a lot of blame, but I think they got too lax in restrictions and didn't respond quickly enough. Monitoring available ICU beds is a lagging indicator.
It's a totally different situation in the Dakotas, mind you. I get the sense that California let their guard down while the Dakotas strapped themselves to the mast and sailed straight for the storm.
It's all the more terrible now that the vaccine is starting to enter circulation. While there was an argument in the past that the best strategy might have been to manage the spread rather than prevent it, now it's clear that every death that could have been delayed a few months could have been prevented.
The San Joaquin Valley, where I live, is one of the three worst areas in the state. Too many people think that a mask isn't necessary, even in close quarters, especially when they're sick.