Many people in this world are left handed: "Studies suggest that 88–92% of the world population is right-handed." -- Handedness, Wikipedia. Presumably, somewhere around 10% of Muslim converts are left handed.
In Islam, however, we are discouraged from eating with our left hands:
... When one of you eats, then let him eat with his right hand, and let him drink with his right hand, for indeed Ash-Shaitan eats with his left hand, and he drinks with his left hand. ... -- Jami' at-Tirmidhi 1800 [grade: sahih] (sunnah.com)
This raises the question:
Question: Do left-handed converts need to start eating with their right hand?
As far as I know, it's not forbidden to eat with your left hand, but it's discouraged (makruh). However, there are social implications of eating among a group of Muslims using your left hand. For example, one of my friends tells a story where he drank soup with his left hand, and someone moved his soup bowl to his right-hand side.
It seems likely that it would be impractical for a left-handed convert to continue using their left hand to eat. However, this is just hypothetical, and I'm wondering if this is actually the case.