I think your wrong with every sacrifice comes emotion and up in bold is what it would look like without any emotion. JP has been on the show for 12 years now it’s been a huge part of his life. I know for certain what this feels like. I play instruments, and I understand once I mastered one instrument I wanted some fresh new blood a new instrument to learn and master, but never have I ever stoped playing a old instrument because it is part of me. If Jim Parsons never wanted to look back after the show ended he would have never started or produced Young Sheldon. He said this specifically in a interview saying that young Sheldon would give him a good place to keep tbbt with him.