On public roadways, no. The farm tag doesn't change the legal driving age.
Laws on this vary by jurisdiction.
Can I drive a farm dumptruck without a cdl in Washington State
I don't think there is a law against it--as long as both you and the truck are licensed.
In the US you have to be at least 25 years old to drive a bucket truck.
16 for a farm tractor, 17 for a car and 21 for a lorry or truck (same thing)
If it's a registered farm vehicle, and operated by the farmer, family members of the farmer, or direct employees of the farmer, then no. However, the distance from the farm the vehicle is permitted to operate is restricted, all activities of that truck must be for the operation of that farm, and it may not haul freight for hire.
Someone who knows how to drive a truck and is legally licensed to drive a truck has to train you, so that you can drive a truck (but you do also have to get a license).
Y don't u go and figure it out
If you're going to be operating it on public roadways, then yes.
you can drive it at any age as long as your not driving far and your doing farm stuff.