I am a CDL instructor.
Not all states allow the "auto restriction", Florida being one. If the rumors I hear are correct, it will be later this year or next when that restriction becomes a reality.
I spend most of my time teaching simple shifting in a 10 speed. The state mandates that students learn to double clutch, so that is a total new experience for people who have driven a stick.
There is a school south of here that is a CDL factory. Want to buy one, have at it. If you want a job, your wasting your money, because employer's give drivers a road test before hiring them, and then we get them (with class A license) to train all over again. You would be surprised at how many people that have a CDL-A that have no clue how to drive a semi truck. State requires that you be able to downshift also, a feat that usually scares most students, but I have teaching it down pat, so it is easier than up-shifting.
Bigtiller speaks the truth, if you don't need a CDL, stay away from it. The added penalties and such are not worth it. There are things you can do with a regular drivers license only to cost you a few bucks if you mess up, and they suspend your license if you have a CDL. (Take for instance running across a set of railroad tracks when the lights start flashing but the bars haven't gone down, and your on your way back from the store with ice cream for the wife, in your car. Probably $180 or so fine for a drivers license, but if you have a CDL, the penalty becomes a 60 day suspension, and you weren't even in a truck!!!)
David from jax