It sounds like something designed to minimize litigation. Or perhaps it's just PC>
High adventure is tough! These are deep wilderness hikes and canoe trips with packed geer and camping for usually about 7 nights.
I wouldn’t want this guy along huffing and puffing. Who’s gonna deal with his carcass if he keels over in the outback?
Makes things better on the kids too. You don’t want some fat whale dragging at the back of every hike and slowing everybody down in every physical activity.