Are Waivers Enforceable Against Family Members?
Waivers signed by parents, releasing liability for future negligent acts committed against minor children in recreational and related settings, are generally enforced by judges in California as discussed here.
Interestingly, a clear majority of courts in other states have held that a parent may not release a minor's prospective claim for negligence.
And when the victim is an adult family member who dies participating in an activity for which he signed a waiver, those who can bring a lawsuit on his behalf will also likely be bound by the waiver.