Well, I guess I could be tempted. Just don't make me read anything. Can I do it without reading anything, or would that just make me annoying?
.
Absolutely totally doable. Even better, in some ways. I kind of specialize in this, as my Dark Heresy crew is made up of, an engineer-turned-nurse, hyper bright guy who never roleplayed before, reads everything, does great. A long-time-in-the-past RPGer, reads everything, terrible luck in game, my best actor. A long-time roleplayer, doesn't like the setting, reads little to none of it. Two first-time players, read little to start, are reading more now, one is in command no less. Two more first time players, Navy medics, neither one likes to read or will do so, one has yet to play the other is probably my best or tied for best tactician anyway.
So, no, reading the setting and rules is not necessary -unless- you want to play something very challenging. In Dark Heresy, that's a Psyker. In Cyberpunk 2020, that's a Netrunner.
Even those are doable with minimum study, if you're familiar with the setting from other material.
As for rules, myeh. CP2020 is dead easy. Roll 1D10, add it to your stat of 2-10 and your skill of 1-10, vs a target number ranging from 10 to 30. Higher is better. Natural 1 or 10 is a fumble or crit. You may add other modifiers from cyberware or wounds or whatever the GM tells you, but mostly it's 1D10 + a number on your sheet ranging from 3-20.
However, unbeknownst to you at the time, you are actually braindancing in someone else! Once you get a hang of the controls your character stops braindancing and voila, you're in Night City!
I swear... all this contemplating can't be healthy.
I like this, as an optional tutorial. I still like the idea of the player not knowing they are in braindance or, when in braindance, having the same freedom as before, only with a big old SAVE/LOAD button on the upper right, plus looking different and people calling you a different name, in a mission-style adventure.