Another update.
So, last night my wife decided to try out GT Sport. So she logs onto our (only) PS4 and selects her User Profile. GT is locked. Project CARS is locked. Every game is locked. They all work on mine. We spent well over an hour trying to resolve the issue. Eventually we got it working. I had to activate the system as my primary PS4. ...despite only having one, never having logged into another one, and having activated it as my primary ps4 2 or 3 times before.
So basically, Sony's licensing is uckfaying gong show.
We finally get into the game. It asks if she wants to import her data from the demo, including game settings, money, mileage, cars. Of course, she selects yes. ...but all it kept was her mileage and a couple of her crappiest cars. She goes to start the licensing and it didn't save that either, so she has to start all over again (I did too). Then she's like "Ok, so... how do I start a career...?" "OH. Ummm... you don't. Or.. you do, but it's online." "Online? WTF? They took away single player career?" "...yes..." "That is the only part of the game I cared about. uckfay this game." I tend to agree, actually. I mean, I did a couple online races last night and it's cool and all.. but like.. you have to find a race, then wait for the matching to start, then wait for the race to start, then you can't pause it if you need to... There's actually a LOT of value in a good single player experience, and not having it is extremely detrimental for a lot of people.
Bottom line: If you are on the fence about GT Sport, maybe just hold off for a while. See how some updates improve things, maybe they release a bunch of free DLC, maybe they add a 1P career mode...