Are people letting their characters stay dead in Classic, or just using it as a way to play the game a specific way? Personally, I'm soft resetting whenever a character dies, and while I don't feel great about it, I'd feel worse with a dead character. I wonder if I should have just swallowed my pride and played on Casual instead, but even with resets, Classic changes the way I would have played enough that I think it's worth playing on Classic.
I let characters die early in XCOM, Valkyria Chronicles, and FF Tactics, but after I finished the battle where I lost my first character in FE, I thought about it for a while and decided to reset.
No one gets left behind or forgotten! I didn't let anyone die in Valkyria Chronicles either ;_;.