I think the same advice works for Chromebooks. Sure, you're still being "tracked" - but let's be honest, that's happening on the web for most users one way or another. In most cases, seniors need a consistent, reliable browser - and nothing else.
That's not to say a $250 Chromebook is the solution, but a $500 one (equal to the value of the laptop in the story) would be exceptional compared to any Windows experience with the same hardware.