Yeah! Many subjects like cosmology, and subjects which teach us about taxation, persuasive techniques, how to fight depression etc. should've been taught but these gems were missing. All I learned from school is how to memorize such, such and such...which has no meaning and it's no use in today's world. Most of the things that I learned in school are futile now.
More than rot learning or memorizing things, schools should, I think, concentrate on building a student's interest.