Joshua Nichols drew the following draft on his Uncle David Nichols and gave it to Natalie Brown in payment for a used car: "To David Nichols: On demand, pay to the order of Natalie Brown $7,000 (signed) Joshua Nichols." When Brown presented the draft to David Nichols for payment, the latter refused to pay it, arguing that the UCC did not require him to do so. Is Nichols correct? Why or why not?