I read a comment once (that it will be impossible for me to find again), that suggested that this is actually a baked in assumption and it depends on the audien

I read a comment once (that it will be impossible for me to find again), that suggested that this is actually a baked in assumption and it depends on the audience. Audiences in Europe were more likely to find it useful to be presented with the working theory first, and examples later, as a specialization of the theory. American audiences tended to prefer working examples first, and then a generalization to form a theory.