Buddha spoke of “mindfulness” and that is translated as “awareness.”
He taught that you have to work on it and to the extent you work on it the more mindful or aware you become.
That implies people can learn awareness, which suggests that many people who seem not to have much of it just don’t bother.
Blame bad drugs, alcohol, television, car envy, whatever.
Trouble and conflict derive from the scale of difference in awareness.