I find this interesting because I took driver's ed. five years ago (in Maryland) when I was sixteen and the instructors never told our class any of these things. The class was basically a repeat of the things you learn when you're five- red means stop, green means go, and you stop at a stop sign. Perhaps it was just the driver's ed class I attended, but it seemed to lack defensive driving techniques and anything beyond what they considered "driving basics".
I've never even thought of not cutting my wheels for safety,

but it makes perfect sense. I remember thinking that driver's ed was a rip for almost $200 and that they should have covered more than what they did.