In "The Big Bang Theory," Jim Parsons plays the quirky genius Sheldon Cooper, and its spin-off show "Young Sheldon," dives into the character's childhood, explaining how he developed many of his rituals like the soothing "Soft Kitty" mantra. The kid version of Sheldon is played by Iain Armitage, but how exactly does Parsons feel about the young actor's attempt to channel his former character?