I like to use seatbelts,makes me feel safer beings its required now,I dont skip wearing them after a day on the job and I’m filthy.When I was running a 621 scraper and looking down at that enormous rubber tire directly beneath me,I figured it was better to buckle up,then having 25 tons plus of caterpillar mashing my skull,besides it silly not to wear the things(never minded wearing a hardhat either) I’m going to say 99% of the time you better off in an car crash,buckled in(but I dont like those belts that are anchored on the window frame of the car)-Kevin