Is "being considerate" something that can be learned or trained?

I generally know what my family and friends like because I learned very early that nobody likes spoiled, mean people so I learned consideration to get some friends and people to like me. Now it's innate, more or less.

I don't care at all about the Olympics or those who failed at it but I was genuinely happy for Micheal Phelps when he won his little swimmy challenge things. My heart even warms when people I don't like are happy. And now, I feel happy that you want to be a better person.

*has diabetes*

Jam it back in, in the dark.