I can see what you mean. As i get older, more responsibilities i have and also less time to play video games. Because i don't have a lot of time to "git gud", these past days i've been gravitating towards games with a certain amount of challenge, not too high, not too low. A middle ground.
I think the fun comes from overcoming the challenge the game presents, find your own way to solve the problem using the tools the game gives you. The difficulties are there to raise this notion even further, so i think most games should be accessible. I say most because games like Souls games have the high difficulty as their identity, it wouldn't be a Souls game without it.