Originally Posted by Seattlenerd

Key here is definition of "for life," because it's the life of the Million Miler, not the household member who is gifted status. Per the mouse print in the nomination email:

Shareable benefits expire upon the death of the Million Miler or failure of the companion to meet the eligibility requirements.

Still a nice perk. I hope I live long enough for my nominee to enjoy it for many, many years.