>>30747886They would need to make too many other things to go along with it. For example, characters aging. Pokemon being the only one to age makes no sense.
It would also be a problem if Legendaries, who you can't breed, died. And event exclusive Pokemon become useless. Ribbons become even more useless, because Pokemon won't even last long. They would need to drop the "Catch 'em all" thing completely, since it would be literally impossible.
There's also the question of whether they would age in Bank. I doubt it, because that would mean the living dex some people spent months to create would die. GF HQ would be burned down. Masuda would be lynched, while he screams "I didn't know".
Point it, they would never do this. Never.