-It’s okay to give Yoda and Palpatine lightsabers, but they should only be used when fighting other lightsaber wielders, not each other.
I don’t really see Palpatine humoring any low-level Jedi with a lightsaber duel. Why would he bother with that?
Nostalgia for a older age when jedi and sith were in great numbers and he was a young strong man (really actually scrawny). Reveal palpatine is actually a lot older than he looks and combine his character with the “supreme intellect” as described by the director of return of the jedi