APP - is a 19 year old considered an adult?

[Don Quixote]

what would be 'taught' in this basic law class? there would be no way to teach someone about every single law on the books that they have to obey.

just some basics that every adult should know, starting with when in doubt consult a lawyer

what to do when confronted by law enforcement
be careful what you sign when you are an adult
things to do when buying real estate or renting
things like that