[reaperducer]

all cars, at least stateside, have had digital radio for eons

My car is a 2015. My wife's car is 2016. Neither have digital radio, much to my disappointment.

people don't buy standalone radio receivers, and haven't in decades

Except that they do, which is why they're still available in stores. I bought one at Target just last fall for a relative who was in the hospital for an extended stay.

[kawsper]

You can buy a cheap bluetooth dongle that transmits on the FM-band that your car can pick up, you can then pair the bluetooth dongle with your phone and have your phone play through your car speakers.

That's a nice inexpensive upgrade, and can be an alternative to having a digital radio installed.

[reaperducer]

You can buy a cheap bluetooth dongle that transmits on the FM-band

No need to. The car has Bluetooth. It also has a USB port, an aux port, and an SD Card slot for playing music. It just doesn't have digital radio.

[dazc]

'Neither have digital radio, much to my disappointment.'

Count yourself fortunate.