Hopefully, Starfield tries to mimic the
real universe in most respects.
In the real universe, I would expect
fewer than one "habitable" planet per Star (and not necessarily inhabited).
So, I expect to find "nothing" on most planets. I.e. most planets are just "filler" in a real universe.
Not saying I'll like it when I start playing (after finishing Witcher 3).
Meantime:
Starfield Is Bethesda’s Biggest Launch Yet with 6+ Million Players
A few hours ago, Bethesda announced on Twitter that Starfield has officially become the company's biggest launch of all time, having already registered more than six million players.
It's yet another indication of the game's strong launch after PlayTracker surmised more than two million units of the $100 Premium Edition had been sold as of September 5th. Then, Microsoft Gaming CEO Phil Spencer revealed Starfield had registered over one million concurrent players.