https://en.wikipedia.org/wiki/Mallsoft

There are still many huge malls, but generally speaking the vast majority of them have closed, are empty, or are being rebranded into something else.

> the USA is the place that i would expect to have the most malls

It's just that a lot of the malls have been augmented or replaced by strip malls. They have the same kinds of stores and they are still close enough to each other that it's convenient. Many have security, though it's more for the property than it is for the employees or guests, and there are large ones all over the place. You can go to Target and get a $14 can opener that you were hoping to pay $5 for but they made sure not to carry any cheap can openers, and notice there's a cell phone store nearby and go and get locked into a contract where you pay more than double. Don't forget to get some boring, expensive, and unhealthy food on the way out.

Since online shopping took over, why would Americans travel long distances by car to go to the mall?