Motivation

At the writers' group I attend, one of the members commented that he didn't get how the people in the chalet park could kill each other or themselves when killing yourself is so difficult.
The residents of the chalet park that is collapsing into the North Sea don't want to leave the place they have lived in for over thirty years. They have nowhere else to go. They have no savings, no money, no family, or family that would take care of them in their old age. They don't want to move from their homes that look over the North Sea.
They aren't young. They don't have commitments to others. They will not be missed if they die.
And for them some things are worse than dying. Rock bottom. When you're absolutely at rock bottom, it's a relief to lie down rather than stand up.

The only problem is Lizzie, a stranger is suddenly living amongst them. They must put on a brave face; she mustn't know.

I haven't got to the end of the story yet. They don't want to die without purpose. They have a further motivation. The test will be if this motivation is enough to satisfy the reader.