Honestly, really ask yourself, why choose anything other than easy mode?
You can get through the game with less artificially inflated difficulty - you relax more.
The only reason I can think of is that you want to pad out the experience so you delay going back to real life.
What about the argument that the challenge is enjoyable?
I would argue that you should take that spirit of appreciating challenge and channel it towards accomplishing real world challenges,
like improving your fitness or the world situation (taking on the challenge of climate change).
Also challenge can distract from enjoying the artistry reducing hours of work into a button mashing exercise - transforming The Godfather into a game of Scissor, Paper Rock.
When you are a kid, playing with difficulty levels may be fun for free time.
As an adult, its important to value your time.