Surrendering the game at 15 is the most fun I have playing league
By 15 minutes the game is 90-95% decided. Unless you're willing to spend the next 30 minutes trying to farm and not die under tower its 100% decided. Successfully getting out of the game at 15 feels like a win, no 30 minutes of unfun gameplay. I propose that every game with a deficit of more than 2000 gold at 15 auto-surrenders.