... so I can enjoy what it feels like to fail in a video game just like I do in real life.
That was phrased beautifully. I just had to repeat it.
In all probability we will eventually reach the end of the game, and achieve some kind of success. But successes will taste all the sweeter if they are achieved despite bad luck, defeats, and wrong choices, instead of being based on optimization of decisions. So I would welcome different kinds of iron man mode.