I don't know about a percentage of households I know, but I do know of several households with literally zero means to play back any physical media. No DVD or Blu-ray players, cars don't have CD players, no computers with optical drives, no game consoles, only maybe a Switch for a game console.
I imagine it's still far from most, but it's definitely starting to be a thing.
Oh, I certainly believe there are plenty of households that don't have any devices that play back optical media.
Apart from some very old laptop (which might or might not work), my household doesn't have any CD nor DVD nor Blu-Ray etc drives. No car either, so we couldn't have a CD player in there.
I just doubt these optical-drive-less households like mine form 99% of all households.
I imagine it's still far from most, but it's definitely starting to be a thing.