MILs or CIVs - not a fashion question....
I could never work out how Star Citizen would aim to assign you a Home Planet. When you first boot up the game. How to choose from 100+ star systems? From what experience base? Could you try before you 'buy in' so to speak then reset at no cost? But then I realised there's a cunning way to assign you a point of narrative origin, and it involves your Dog Tags...
CITIZENSHIP is a concept taken to the narrative extreme in Robert Heinlein's STARSHIP TROOPERS books. Based bluntly on the concept of NMS or National Military Service, you earn your Citizenship by going to Inter-galactic War against various alien enemies. Now that's a double-edged sword right there but it has a function to Sort the Citizens from the Little People, cross-paraphrasing from Blade Runner.
EARNING YOUR CITIZENSHIP:
Star Citizen was never meant to be about playing the national-service card, it was always about the freelance multi-player 'sandbox'. If you wished (once you'd purchased the Star Citizen game) you could opt-in to the military single-player storyline to unlock a bit of inter-galactic touring experience and/or some funky ex-war ships for use in the PU or Persistent Universe consisting of one-hundred star systems.
I could never work out why New Player is assigned a spaceship when he buys into the game, but it's obvious when you use the above scenario because, "It's assumed that every player has gone through MBT or Military Basic Training in a one-seater fighter or freighter ship," and can pilot this space ship from A to B.
Normal dwellers, or proto-Citizens, who function as serfs or lackeys to their Corporate Overlords haven't earned this privilege yet. They are station-bound or City-bound by fealty and perform menial duties like comms or retail or landscaping. They probably don't even have the right to vote in elections of corporate leaders.
To be a "Star Citizen" means a) to have been in an alien war for your corporation and b) to have the ability and certificates to pilot a space ship of some kind.
When player is honourably discharged at the successful completion of Squadron 42 chapter one i.e. he/she hands in his/her Military ID or Dog Tags, player is then revealed his/her planet of origin and therefore Star System in which he/she will spawn in the Star Citizen game, probably by tracking progress through Squadron 42 in association with global IP-address. But this means potentially PTSD-scarred veterans are running around in the capitalist free-market touting for jobs and voting in elections.
It's so much clearer to me now.