Does my son deserve a Yaris?

[J.J. Jefferson]

Hey guys I have a serious question. My son, Skipper, is one heck of a kid, well he used to be. Between the ages of 16-19 he was very responsible and respectful. Now he is 20 and seems to have fallen in with the wrong crowd. He has already had a DUI, totalled my truck (2008 Chevy Silverado), and was riding with his friend in a stolen car! Luckily he has been able to avoid any major problems with the authorities.
His 21st birthday is coming up soon and he seems to have taken quite the shine to my new Yaris. He keeps making comments about how he wants one. Should I get him one? In about five years, when he moves out of the house, I don't want him to completely hate me or anything. Thanks guys.