We are forced by law to accept these pieces "green and gray ink" to settle all debts regardless of what the debt is really in -- you cannot make contracts in gold, and expect them to be enforced. Commerce is most definitely possible without that paper, in fact in California in the early 1900s you were blackballed if you used Dollars instead of gold.
"In California, as in other states, the paper was legal tender and was receivable for public dues; nor was there any distrust or hostility toward the federal government. But there was a strong feeling ... in favor of gold and against paper ... Every debtor had the legal right to pay off his debts in depreciated paper. But if he did so, he was a marked man (the creditor was likely to post him publicly in the newspapers) and he was virtually boycotted. Throughout this period paper was not used in California. The people of the state conducted their transactions in gold, while all the rest of the United States used convertible paper." [ref1]
I am unhappy with the level of services and taxes, but instead of leaving I hope to change and improve it. Just because someone disagrees doesn't mean they are forced to leave.
ref1: Frank W. Taussig, Principles of Economics, 2nd Ed. (New York: The MacMillan Company, 1916) I, 312. Also see J.K. Upton, Money in Politics, 2nd Ed. (Boston: Lothrop Publishing Company, 1895) pp. 69 ff.