We're talking 50 individual state governments here. We all know that federal, state, and local govt IT practices are basically troubled at best, disastrously shoddy at worst, the only way I would accept this idea is if it was a completely optional, user-chosen, option for an ID.
I would want at least ten years of first adopters getting their lives shafted and/or stolen and/or stalked and/or breached before I'd ever think of even using the optional service.
Yes, little trust.