That's definately NOT a steelhead. Tail appears to be forked in both pics (kid really isn't squeezing the tail that hard if you look close) and the anal fin isn't 90 degrees off the body like a steelhead. Scale loss and head shape, no steelie. White gum line, definately not a chinook either.

My guess is late coho but is it possible this is a dime bright chum?
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On a long enough timeline the survival rate for everyone drops to zero.