When several people share limited resources on a study trip or service project, arranging fair turns can reduce conflict. With limited vehicle seating, for example, a responsible arrangement may consider both health and genuine need.
A companion who freely offers convenience should be appreciated, but that offer should not become an assumed permanent obligation. Nor must a leader deliberately choose the most difficult option in every situation; the sensible choice depends on circumstances.
Practical lesson: volunteering to serve is commendable, while rank should not be used to impose needless hardship on others.