Most states require a commercial driver to be at least 18 years old. However, you will not be able to leave your home state in a commercial truck (this is called intrastate driving).
To drive outside of your home state (interstate driving) you must be at least 21 years old. Therefore, most trucking companies will not hire a driver who is under the age of 21.
You need to be 16 years old to drive a semi truck all over the United States of America.
You can get an intrastate-only CDL at the age of 18. To drive interstate, you must be 21.
You go to an actual truck driving school.
Yes, but you can't drive it.
You go to a truck driving school and learn how to drive a truck.
Someone who has been trained and licensed to do so.
Truck driving school and some follow-on training.
18
You can drive barefoot if you wish, although it probably would not be a recommended practice.
About an hour at highway speeds.
To drive a semi truck, you need a specific driving license that allows you to drive that class of vehicle. As well, as proper education and training such as driver's ed.
They have large blind spots to the rear and on the sides.