There’s an expectation that “we’re all in this together” and if you contribute, you’ll get so much more out of the adventure.
For example: if we get bogged in sand or mud, we all get on the end of a shovel and dig ourselves out. If we’re crossing a river, you may need to jump out and be on the UHF Radio to guide wheel placements. If you want to help in the kitchen, then no-one will stop you. There’s no dishwasher! – so each night we need to wash-up the old-fashioned way – and whilst there’s no roster, everyone gets to do it. Nothing better than having a campfire when permitted – so we need to collect firewood – and someone needs to light the fire.