On this general subject, it's also very important for the leader to teach and role model good camp hygiene especially when there are predators known to be in the area (but even when not). The leader can designate a food prep, eating and food hanging area away from the tents. They should be clear about expectations for cleaning up trash, washing dishes, not throwing grey water in the lake, storing food properly, etc. In a group, the group is only as safe as the camp hygiene and food storage behaviors of the other participants allow, so though some people may resent rules, the leader is ultimately responsible for their group's behavior and the outcomes.

This is something the leader should be clear about in their pre-trip communications. If someone doesn't want to adhere to these practices they can drop out of the group. But at least there are then no surprises. I treat bonfires the same way - we aren't going to have 'em.