Text bots have been able to pass a Turing test and be indisguinshable from a human for a long time. They had chat bots that could trick you into thinking they were real people, that college kids made just for fun on IRC and even in games back in the 90’s.
These rules that ChatGPT imposes so it doesn’t create something someone may find harmful are relatively new. And there’s no law saying they need to be there.