[dragonwriter]

> Isn't that the logical approach to teaching it though?

If you assume what used to be called “the standard social science model” centered on rational choice theory is, if not a actually right, a reasonable approximation for common conditions akin to Newtonian mechanics, sure.

OTOH, if, as seems to be increasingly common (across the social sciences), you see it more akin to Aristotelean mechanics that coincidentally looks like some real phenomenon but gets the mechanism wrong for the general outline of how things behave, then, no.