@mysteryman,
I know plenty of truck drivers that are driving a truck because...
a) the hiring process is so long, and not guaranteed you'll make it just because you passed the initial interviews.
b) they can't take the people
c) more freedom, less bullshit and generally more money.
Lots of them would love it though, they can stay home at night. Guaranteed hours, a decent wage...
But just because they can, doesn't make it feasible.