See, there are different kind of rules. The hard ones and the vague ones and each have a purpose.
If you state a rule somewhat vague you purposefully leave a grey area. Within this area, it is up to the police/judge/GM to decide whether you broke the rule or not.
The effect of this is a certain uncertainty, which may appear as a bad thing but often really isn't. Since the goal here is to avoid people walking the line, to push the limits, to find loopholes. On the other hand, it allows GM to show leniance, too. (Also, vague rules are used, when it's very difficult to actually define the limits objectively).

And you have these kind of rules/laws in real life, too.
"Don't drive in a way that recklessly endangers other traffic participants" - "Wait, what classifies as reckless driving?" - "Don't push it, man!"
If you would define "recklessly" by setting limits for speed, acceleration, deviation from the road center, and whatsnot, you'd leave loopholes. Of course, hard rules have a purpose aswell, as they make it easy to deal with obvious cases and are less prone to subjective judgement.

So back to topic:
If you are in a rookie system and in a situation where you wonder "Is this a rookie now or not?", it should be clear that as soon as you have valid cause to even ask this question, the safe course of action is to leave it be. It's a about common sense, really.
Of course you can still ask that question, answer it for yourself as good as you can, but when acting accordingly, you willingly accept the risk that goes along with that. Eve, consequences and stuff ;)

okay so i get the "dont mess with the rookies period" point, but is pvp still allowed in the system? like for example can you pvp with someone who isnt a rookie in that system?

I dont pvp in rookie systems but when i would go to them i would see people pvping outside the staton who arent rookies

You just said in (2) that nobody is protected outside of rookie systems. Then you went on to say in (7), "Even though they're not protected outside of those systems, don't mess with them anywhere else, either " which, as a GM edict, could be interpreted as policy. So now you have two policy points that directly contradict each other, and (4) is the cherry on top - "or else".

You couldn't make it through a brief synopsis of your position without contradicting both yourself and policy as it is currently known. This should probably be taken as an indication that you need to rethink things.

It's not out of line for a rookie to join a corporation that is wardecced or to haul something between stations for money. There are many other situations where a new player could legitimately enter a scenario where they could blow up or blow someone else up due to the hands of another player in EvE Online, a spaceship game designed around blowing other spaceships.

Since nothing of much economic value happens in rookie systems, the only thing this really applies to is something like "are Hulks in rookie systems 'rookies'?"

b) continue short list of Exceptions, like initiating a suicide gank, or whatever. Take these from the publicly viewable information used in your in house Newbie definition