It depends on how long you have been riding a ATV.
I took one way back in 1990 after I purchased my first ATV in 89, they offered a $50 US Savings Bond for taking it.
While I had been riding for quite a while I did learn a few things but also at that time there were a lot of 2 wheel drive units and for the obstical course they had set up 4x4 was the only way to ride it very easy. I did have a 4x4 by the way.