We all talk like we have marbles in our mouths and couldn't say things if we tried, and the t to d conversion is even more common. Though the
Colton example would probably be said more like COHT-in with the L dropped and the T exaggerated.
It once took me half and hour to figure out that this woman was calling her children
Carter and
Sawyer because she said CAHD-uh and SUH-yuh.