I promise you you don't want that drivers job - have you seen them after 3 weeks having driven all those miles in every weather imaginable(Sun, rain, snow!), sitting in a vehicle with no suspension breathing in the exhaust fumes of the vehicles in front, having to watch out for stupid people who dodge between the vehicles (sometimes getting hemselves killed), sleeping in cheap hotels every night and moving on everyday.
By the end they don't look like they are enjoying themselves much anymore.