There is a sense of embarrassment and humiliation from it.
Most people who describe the sucking feel that it soothes them, calms them, gives them comfort, focuses them.
They're not freaking out, though, and I'm impressed with how neighbor is helping neighbor. I see resilience and determination.
As with any habit, the person has to make a commitment that they do want to stop.
It's a rough time down here. Everybody is having acute stress responses. They're numb, they're crying. But who wouldn't be if you lost your house.