One of the things Dave has mentioned in previous threads that cannot be overstated is how being able to shoot both ways allows you to alternate your practice days and balance out the conditioning while also giving muscle groups a day off to rest. I makes a difference once you qualify for that senior coffee.
After 50 years of shooting lefty, it took me about 4 months of shooting righty to get where it comes natural, working my way up from 25 to 60 lb bows, then I started consciously alternating between sides. Now I have to stop and look at what bow I grabbed to remind myself what side I'm shooting, as they both come natural and my brain just knows, from practice, where to aim.