If I have to drive for miles to reach the locker, then I'd rather have my packages delivered to my door. That's why I thought China can implement this idea better, because by a walking distance, you can reach thousands of people.

But in the U.S., it may be a good idea to locate the lockers in grocery stores. Picking packages while doing groceries is also convenient.

Assuming people don't have their groceries delivered as well. ;)