We Should Be Able to Calibrate a Cameras Screen

In 2026, something has occurred to me. Lots of my friends don't rate images in-camera partially because they don't trust their screens - not to mention sometimes just being lazy. But I've thought about this at times, why can't I give an ICC profile to my camera's screen? Why can't I make it match my iMac, my iPhone, and Macbook Pro, etc? And why can't I send a printer profile to it so that I can make prints on-site for a client?