Fun fact, there's a loophole on this.

Get married.

I kid you not. I got married young (my choice, still together, love my wife, just for the record), and I was exempt from this. My jaw quite literally dropped because the year before I got married I had to pay full rate on school.

So, if you're planning on tying the knot but are waiting to finish school, don't. it might cost you less.