A utility bill doesn't require proof of residency to get. Neither does a credit card statement. Infact if I were creative I could say I live anywhere and provide false documents of that. It is the legitimate use of this system that is difficult, not illigitimate use.
The system is not designed to be secure or to ensure residency, that's not it's purpose. Its purpose is to create further government control to suppress citizens rights to operate freeley in their own country. Specifically, to target low income individuals. These people creating the policies are not the same people whom are affected by them.
If I am U.S. born I have a right to operate in certain capacities as a citizen. Voting, owning land, and working are all rights unalienable. The fact this is not currently true is proof of the federal fascism we live in.