I have trained some guys to get their CDL and let them use my 750 and 10 ton deck over to do the driving exam. I don't really have employees so my situation is different but I would rather have qualified people than taking a chance. The guys I share my lot with got busted because of a trailer with no tail lights. Once the officer dug a little he found a bunch of other infractions to fine them for. One being no CDL driving a 650 pulling a 7t trailer that was overweight(gross and axle) with defective equipment.
My bizz is a little different and I guess the costs is there but I see as a way to get and keep qualified help. If they have a CDL they prolly already know how to operate equipment and drive a dump truck