Should Devs update old worlds?

I would really like the old worlds to be updated for more interactivity mainly for pets, in Brindleton Bay cats and dogs can go out in the world, dig up holes, explore bushes, chase birds, etc. but not in the other worlds (except for Windenburg, cats and dogs can explore the poohoo bushes in Windenburg) which is weird since the other worlds have decorative birds, but they're not interactive. I feel like a simple solution to make the other worlds more interactive for pets would be to make the wild harvestable explorable for pets, that way they wouldn't have to update each individual world, just make those wild bushes interactive, as well as the decorative birds. I feel like it would also be cool to make some of the decorative logs, rocks, and other objects in the environment to be interactive for cats as well. Perhaps even the boxes in San Myshuno, a cat or dog can dig through those boxes to find collectibles.