We're all going to be left-handed (or right) at some point in our lives.
A couple of years ago, I dedicated 6 months to carrying and doing everything left handed. Very informative. Most people spend a good bit of time WHO, but very little mirrored. I gleaned a lot of good information about shooting both left-handed and cross-eye dominant. Makes you more empathetic to new shooters. Ayoob advocated it as an exercise in instructing as well as a contingency preparation. You end up having to re-learn a lot of things that became automatic strong side.
Left-handed holsters tend to be easy to find deals on... as long as you're not in a hurry.