A month after he turned 16, Chris, a resident of Missouri, answered a classified newpaper ad and, after prolonged negotiations, bought a used car from Dowdy. Chris spent $8,500 of the $10,000 in cash given to him by his father on his birthday on the purchase. Six months after buying the car, the crankshaft in the engine broke. The cost of a new engine would have been about $3,200 so Chris decided to disaffirm the contract to purchase the car. Legally, can he do so?