>>78727 (OP)
I dont think we could realistically live diaper free. Like some other here have said, successful EC is probably not the norm. I would assume that the majority who try it end up failing or switching back for other reasons. I do not have any source for this however.
Another thing I have heard in a couple different places is that "unrestricted voiding" (read as: diapers) is actually necessary for the normal development of a child's bladder and bowels. Potty training too early can actually have negative effects later on because the body just isnt physically developed enough when the training starts, and it causes long term damage. EC and unrestricted voiding are not necessarily mutually exclusive, but they do seem to go that way in many cases from what I can tell.
There are also the issues of night time, car rides, public places, etc, etc.
I would say that as a society that we could probably reduce the amount of diapers we use, but certainly not eliminate it. More specifically, I would say a very, very few could eliminate them, some could reduce them, and some, many, or even most probably would not realistically be able to go without them.
The bigger question is why you would even want to. Disposable diapers account for about 1% of the wast that goes into landfills. That is very insignificant. I want to say either paper waste or yard waste accounts for about 50% by comparison. Paper waste is easily recyclable, and yard waste is easily compostable. Eliminating these from our trash cans would be much, MUCH easier and have a much, much greater benefit.
Biodegradable diapers dont really gain us much either, unless you are composting them in your own back yard. Landfills have very, very little oxygen in them. That means that very little decomposition is happening inside them, regardless of if their contents are biodegradable or not. Things still break down, but not from oxygen breathing bacteria, and as a result the process is much, much slower.
>>tldr: We probably cant live totally diaper free, and we really have no reason to try either.