Driving quickly but safely with an oversized vehicle is a skill.
Preparing so you can survive on the road for an entire day, is a skill.
Delivering loads of items on a tight schedule, despite all the shit that life is going to throw at you (accidents, roadworks, dog attacks, etc) is a skill.
Can we stop with this “low skill” bullshit? Most white-collar workers wouldn’t last a week in one of these jobs. The low/high skill classification is just a way for the managerial classes to justify their outsized profiteering remuneration.