If I ever ran a high school, I would offer real courses, like: How to do your taxesHow to flirt...

If I ever ran a high school, I would offer real courses, like: 

How to do your taxes
How to flirt without being creepy, awkward, or both at the same time
How to buy pink nail polish that doesn’t immediately put one in mind of pepto bismol
How to know if you’re the sort who can handle one-night stands or not
How to eat just the right amount to be satisfied
Team sports: overrated or just over-popularized? 
How to find a job that will achieve the right balance of personal fulfilment and financial stability
Cats, dogs, and children: how to know if any of these are right for you

And others. Feel free to add your own. :P