Oz au- before his true intentions were known, Dr Robotnik was a member of the emerald city council and headmaster of the school of magic Sonic and Tails attended
All of Oz, including Tails, thought that jolly man was incredible and wonderful
It must be strange being Sonic the "my arch nemesis built a robotic copy of me but is now treating that copy of me like a son?" Hedgehog.
But that copy is now only a copy in name, proving that Eggman never wanted Sonic at all, only the fantasy of a Sonic he could control, which is ultimately something that is not Sonic in the first place.