Misc. adult skills education

I've noticed that a lot of students leave high school and jump right into the real world without highly essential knowledge regarding rather basic everyday activities. Some of these activities include how to pay taxes, bills, insurance, as well as the related jargon required to fully understand these procedures. Finding a way to pay/apply for college, fundamental home ec., and how to find and lease an apartment are other skills that many students leave high school without.
While one could argue that it is the responsibility of the parents to educate their child about the drier mysteries of the adult world, the practicality of such a responsibility is questionable. The child for one, isn't going to be super motivated to ask mom about how insurance premiums work. In addition, many parents, particularly very young ones, may not have fully acquired all of these skills themselves.
These reasons lead me to believe that a class that offers instruction on some basic needs of adulthood would be a rational addition to the high school curriculum, even if only as an elective.