Air Brake Hoses, Lines/piping, And Fittings problems of the 2001 Chevrolet Suburban

I was taking my Suburban in for it's annual safety inspection and was notified by my mechanic that one of the vehicle's brake lines (exiting the abs pump) was leaking and that all five of the primary brake lines are externally rusted and near breaking. All five lines need to be replaced resulting in very costly repairs. I have six children and we regularly travel as a family. This potential failure has jeopardized my children's lives and gm should be held accountable for selling an inferior product. The vehicle has 88,000 miles and is regularly maintained.