“Swedes have grown accustomed to the idea that babies cannot be potty trained, but that parents need to wait until they are mature, usually when they decide that they no longer want diapers,” said a recent University of Gothenburg study that explored the potty training process.
I guess we can say that the general view of potty training in America is about the same as the Swedish: most parents potty train their children at two or three years of age or when they deem them mature enough. The child usually doesn’t get to help decide when that is and sometimes the parents sick of handling diapers will expedite the process.
One article I found said the average child will end up using a total of 6,000-7,000 disposable diapers by age two. That article, written in 2010, also broke down the cost per diaper of several diaper brands and the cost per year from birth to age two: $1,000-$2,240. Cloth diapers have become popular again with parents who say they are saving money and diverting diapers from landfills.