Also, I mean, when you think about it, going off to world save and dimension hop for a few days now without really telling his daughter anything about it isn’t exactly the most noble thing anyhow.
You also need to differentiate between combat and non-combat situations. Sam’s too much of a team player to have Scanlan fuck around in battle, and he’s an insanely good strategist leading to all the MVP moments of Scanlan, but once the battle is done? Mind alterting magic for personal amusement or enrichment everywhere, whee!