America has somewhere on the order of 80 million dogs, to which in modern times, owners of dogs are far more diligent in collecting the poop that their dogs create each day, typically by utilizing small plastic bags dedicated specifically for dog poop. The thing is, in many communities, plastic bags are considered in and of themselves to be a nuisance because plastic bags aren't really biodegradable, and because of plastic bags light size, stretch ability and flexibility are easily transported into all sorts of places, land or sea, to which animals often will try to ingest these bags, only to cause themselves harm.
A dog pooping on your own property, gives an owner a fairly large array of options such as composting in your backyard, creating an aerobic digester, a waste digester system, letting nature takes its course, or having an outside poop-scoping service come visit your yard periodically to collect your pet's poop for professional composting or similar. All of the above seems fairly reasonable to accomplish for a given pet owner, however, many pet owners, walk their dog each day, and thereby their dog usually performs its business in the public square to which, out of courtesy, or perhaps out of health concerns, or the fear of a monetary fine, the owners of the dogs, scoop up the poop.
Currently, most owners just use a plastic bag and after finishing scooping, tie a knot and dump the poop into their outside trash can. This means that when their regular trash, along with all their poop in plastic bags goes to a landfill, that in all likelihood, the lack of oxygen reaching into the plastic bag, means that the poop will not biodegrade, and in any event, is far from being the best or most appropriate way to deal with that type of waste. A better plan is to scoop up the poop with something that is a water-soluble material, yet able to hold the poop successfully till you are able to get to a toilet inside your home and then flush it away. Because this is America, this product has been invented and usually uses names such as flush doggy bags, or dog flushable, to signify that you can utilize your toilet system for this disposal. Unfortunately, there is a learning curve, depending upon your skill-set and the size of your dog, in order to utilize this product successfully, as well as the fact, that a dog flushable may or may not be correct to use, if you are on a septic tank system.
Modern man takes advantage of indoor plumbing each and every day, to which, it makes logical sense that a far cleaner and efficient way to handle dog poop disposal in the absence of composting or biodegrading the waste in your backyard, is to allow your pet to utilize the same indoor plumbing that is so successfully utilized for humans. While the process of getting that waste into the sewage system for your dog is far more problematic, it is man's obligation to society as well as to man's best friend, to do their part to make life more bearable and more environmentally friendly than todays toss it in the garbage can and pretend it's not poop, style, which pretty much ignores the reality of the situation.