Oh, there ARE such avatars, but the problem is in the degree of execution of them. In the SF Bay Area a year ago some guy 'cloned' his now dead fiancee digitally and had it 'talk' to him via messaging. It was of course just a dead puppet. The digital avatars you mention are not based on strong underpinnings. They do not have a true Self inside, no soul, and no ability to be a true avatar. Just chatbot hacks. In a way it is like some actor plays a doctor on TV, but the actor has no ability whatsoever to heal the ill. He just wears a white lab coat and looks purposeful. A chatbot could talk about getting laid, but it never has had sex and cannot understand the experience.
Oh, there ARE such avatars, but the problem is in the degree of execution of them. In the SF Bay Area a year ago some guy 'cloned' his now dead fiancee digitally and had it 'talk' to him via messaging. It was of course just a dead puppet. The digital avatars you mention are not based on strong underpinnings. They do not have a true Self inside, no soul, and no ability to be a true avatar. Just chatbot hacks. In a way it is like some actor plays a doctor on TV, but the actor has no ability whatsoever to heal the ill. He just wears a white lab coat and looks purposeful.