I've always interpreted skill-1 as amateur/'apprentice', skill-2 as 'journeyman', and skill-3 as 'master'.
That's a good rule-of-thumb, and I think it's a popular outlook on Traveller skills post CT (when the one-size-fits-all line of thinking entered the game using the UTP task system and blanket stat modifiers).
In CT, though, this is just not the case.
A Medic-1, being a nurse or paramedic, is a professional, and not an amateur or apprentice if you're trying to be a paramedic. If you're trying to be a doctor, though, then, yes, Medic-1 is more of an apprentice (as a nurse is to a doctor).
But then, take Vacc Suit-2. That's really all you need in Vacc Suit to do most jobs. The modifier for Vacc Suit ops is +4 per level of skill, trying to throw 10+ for most Vacc Suit related tasks. Vacc Suit-2 means automatic success.
I think CT, rightly, shows how different skills need to be regarded in their own light. The real world is not one-size-fits-all.
MGT, of course, follows its predecessors in one-size-fits-all stat bonuses and skill weight.
And Vacc Suit could mean...?
Or Zero-G?
Or how about Astrogation?
All of these are from the Drifter careers. So, even the scum of Travellers can have these skills. Unless you want to tell me Julius Caesar's veterans were masters of the Vacc Suit...
Of course there are some high tech skills (Pilot, Engineering, Navigation come to mind), but the vast majority do not require a high tech level to master.
For every Pilot skill, there's more of the Admin, Broker, Trader, Streetwise type skills that can belong in many different TL cultures.
You keep on asserting this but produce no evidence or argument to justify it.
Then you haven't been reading my posts.
As for you comment about me not wanting a player to play the type of character he wants to play. I would ask you in return, "Then why have a random element in chargen at all? Why not just give your players the stats and careers they want."?
You can't accuse me of not wanting my players to play character that they want to play and then make your players random roll anything.