Cool topic idea.

I don't mind games that have complex stuff but if I'm hit with it all at once at the start of the game, I would probably get overwhelmed and not want to play. Iv'e played games before where the basics are pretty easy to pick up and then you learn as you go or there are optional more complicated mechanics you can delve into if you want to, and that always works well.

I don't play a lot of games nor spend a lot of time playing games so I personally prefer games I can pick up rather quickly.