Where buying a modest quantity of boneless fresh chicken is an option --- sounds like a fine choice. I'm pretty sure that the cans are more commonly available, plus I can defer opening the can, whereas the fresh stuff is "going to start going bad" as soon as it goes into my shopping basket ..."Then why bother with chicken from a can? The reason to get pouch/canned chicken is because is it can be used day 3 or 4. If you are gonna eat it right away why not go with fresh chicken."
I guess the other issue is that I'd never considered asking for a small quantity of already-cooked, boneless fresh chicken! I tend to think of the meat department in grocery stores as having uncooked meats. Maybe I'll give it a try sometime, though perhaps only in a trail town where I have a refrigerator available.