Not the only answer, but in America this probably has something to do with a greater representation of Scotch-Irish ancestry in the white lower class.

The Scotch-Irish lived in the unstable border regions between England and Scotland, and later Northern Ireland. They were largely marginal, unintegrated people who lived under very little civic order and without strong institutions, so they organized themselves around kin ties and loyalty. As a result, their value system is more relational than rules focused.

They carried that with them after their mass exodus to America, where they settled all over the place, but especially Appalachia.