Yes some people just aren’t in tune with others, not aware and could only comprehend what’s happening if someone points it out.

Like if you tell them someone is being mean or someone is being loving or someone is suffering and need support or someone appears upset, they’ll be “oh I didn’t realize, but now I see what you mean”. If they just observe it themselves, they don’t always understand what they are looking at. Or they might completely misinterpret what they see. Just lack of awareness.

Now if you tell me these people are 5 years old, oh absolutely awareness and empathy could be cultivated. But if they are 60, I’d say that’s who they are. You probably can’t teach them to be aware and understand what others might feel or might need and what things mean

Saying that, even if one lacks natural awareness, they still can learn to behave appropriately. Like even if they don’t comprehend grief on emotional level, they can learn to express condolences and learn to help those in need.