"According to the latest neuroscience research, 98% of people have the ability to empathize wired into their brains..."(BBC Magazine,1). This is another argument, that everyone has to be able to learn empathy because everyone has it. It makes sense, empathy is proven to be a part of the human brains. My counterargument to this is that empathy is like integrity. Everyone starts with a full "glass" of integrity in their live, but do you think people going around excessively stealing objects everyday have much integrity. Do you think that people who commit school shootings, or people that haven't taken a test in their life with out cheating have much integrity. No, and my argument is that the same thing applies to empathy. Sure, everyone has empathy but people can lose it as they live their lives. It all comes down to how they were raised and the examples shown to them as kids. If someone has lived 20 or 30 years of their life with very low empathy, your not going to be able to teach them to have more empathy with just some exercises that the person will willingly have to do.
In conclusion, being able to teach someone completely revolves around the person. You can't just teach any person to have more empathy, they need to be compliant as well. Finally, it depends on the persons personality and character traits that the person posses to be able to get learn empathy.