I took the advice presented in a couple books when starting, and if conditions did not dictate technique, I'd switch hands every other cast regardless of bank. A little awkward at first, but side of the river, or responding to wind direction doesn't even get a thought now. I've made a few cack-handed tries, but simply can not generate the power that switching hands gives me. Also, I seem to have a bit more reach being able to go left or right, and can better avoid obstacles be they behind, left, right, or overhead.
At a clave a couple year back one of the speakers did a hands-up pole, and I think about 65% of the attendees were cack-handed casters. I thought it would be just the reverse.
A little practice can do wonders to develop technique, strength, and muscle memory. Many years back I went from being a left handed archer to drawing with my right hand. Day one had me thinking it was impossible. About day 3 the strength and dexterity came around, and I could not shoot left handed now to save my life.
Similarly, I took up handball in my 20's and played for about 20 years. If ever there was a game that demands the use of both hands, that's it. After the first few months I could throw a baseball about the same distance with either hand.
If one puts in the effort, it will come. If one never tries, it for sure won't.