Mobile would be insane indeed. How would that even work?
I'm actually playing the game since CM3, which is a... long time ago. Back that in was laughably bad in the sense that there was always some funny gamebreaking bug in career. Ever since 2007/8 the game's "career mode" didn't seem to noticably improve and I just stopped caring. I haven't touched it in years and am a happy person. I'm also not missing anything according to friends who still play.