The point of playing is to play, complete the game, understand its meaning and main idea, and immerse yourself in it. But game moments that a person simply cannot overcome end up pushing them away from the game as a whole; it becomes tedious (if you have to replay the same mission 10 times, it quickly gets boring).
Example: Heroes 5 is a very interesting game with excellent graphics, but in some places it is so difficult that you have to spend a huge amount of time and energy to complete it. I'd rather add a couple of hundred units to my army and overwhelm the enemy who is preventing me from progressing and learning the continuation of the story, than just keep banging my head against the same obstacle.
I completed all the previous Heroes games without cheats