I'm 25, I play big gamerly games, no MMO though, and I have close to no reproach to make to this game.
I don't like your typology. But I admit there is people who get Elite, and those who want it different than it is.
And I think the people who get it are those that will still play and support the game in 10 years when the big gamers will be playing WoW II or some big AAA game. Big impatient "gratify me now" players want World of Assassin's Creed New Modern Warfare.
I recently posted a thread to explain just what I love in this game and you couln't find anywhere else.
I I had to sum it up... Elite is unconventionnal. That's not a game who tells you what the goal is. How to win. What is winning. Which can unnerve some "quick-reward players". They tend not to get that without a defined goal, as in life, you set your own goal and YOU determine when you've won.
This is a game profundly technical. The pleasure is not in the moment when you go reach some signal and go into battle. It's about waking up in your cockpit. Posing your hand on the yoke and getting that chill as your hands carefully take over the launch sequence. You feel the detach. The zero gravity. The slow drifting of your ship coming to life... you delect in the roar of the engine, you can almost feel its tremor in the yoke and the Gs adding up as you speed up. You get a jolt of adrenaline shooting throug the mailbox of a coriolis station. You are in space. Free. And when this countdown it zero, FSD engage, stars elongate and deform as you shoot lightyears away, you can finally achieve your dream as child to one day push into hyperspace the Millenium Falcon and explore the stars.
You can't enjoy Elite if you don't find pleasure in fighting, yes, but also mining, exploring, watching a beatiful sky, going on some planet just because you feel like it. No goal. No mission. You just want to see Jupiter.
And then, everything need to be mastered. Fighting ? Master it FA-On, and then try FA-Off maneuvers... should take you a 1000 hours to become an ace. You can't grind skill in Elite, you have to pursue it.
Trading ? You need to manage, calculate, search, get word of mouth in forums... cruise with an unarmed, unshielded ship through dangerous systems... if it is boring, you don't get it, you don't do it well, you are not seeking to play Elite.
Mining ? That's exploring. Finding a secret good spot. Dodging pirates. Wondering like a fisherman in the sea if you will come home with a sufficient load of precious minerals... drifting around a gaz giant telling yourself "damn... I'm mining Jupiter's ring... I'm experiencing that". You balance limpet and cargo space, you carefully manage you refinery, you have this thrill when hitting a 40% paininte asteroid. You hold your breath. You feel despair when hitting by accident the "jettison all cargo key".
And exploration ? "worse" of all. That's about going ot there to see if there is something beautiful to see. what this nebula looks like. How it is on the surface of this planet. What will happen to you. Will you return ?
Elite has the most complex "space-fighting" gameplay. But it also brings to the table poetry, contemplation, imagination, feelings, technicality, beauty.
Don't grind it. Don't hammer it 3 hours a day every day. Come live you own unsignificant space adventure whenever you feel like seing the stars and doing something among them.