No, I need the ability to quit the game without saving. I've had Sims die on their honeymoon. Sometimes I get started rebuilding a lot and just want it back to what I had before. On patch days like today I need to test mods and may have to go in and out of game without saving. All kinds of reasons.
I know it's sad though if your game crashes and you lose some wonderful moment. I try to save periodically throughout the Sim day to avoid this, but it has happened.
However I would rather have to recreate some moments rather than have to resurrect a Sim or fix a save.