Folk-way

By the time you are grown up and can consider the folk-ways of your childhood with detached impersonality, you have forgotten what was of most value. Rarely will a child tell frankly of his lore, and rarely can an adult remember.

Source: wiktionary

The restricted sustentive range of manipulations of foreign aid in economic warfare is especially marked. This is due to the state of the domestic law concerning foreign aid; "reciprocal controls" which a recipient state can exert; and a "folk way" expectation of economic aid flowing from centers of great productivity, such as the United States, the Soviet Union, and the countries of Western Europe. This folk-way expectation has emerged as a postulate of an obligation to supply the "needs of the needy" upon which foreign aid reasoning in both donor and recipient states tends to be founded.

Source: wiktionary