Call it the nappy-free revolution or too much too soon but a growing number of parents in the United States are trying to wean their infants off nappies even before they can walk.
The parents say it is common in other cultures and cite a number of advantages. No more nappy rash, no more money spent on expensive nappies and no more overflowing, foul-smelling trash bins.
Melinda Rothstein, mother of seven-month-old Hannah and three-year-old Samuel, said her concerns about adding yet more man-made rubbish to the world's landfills helped persuade her to adopt "elimination communication" with her daughter.
"I was concerned about the environment," she said.
"The savings are a big plus, but mostly it's about having a close relationship with the kid."
Rothstein, who has founded the non-profit association DiaperFreeBaby.org to spread the word, said the technique encourages her daughter to convey her needs.
Soon after giving birth to Hannah, Rothstein showed her how to use the potty seat. For the first three months, Rothstein put cloth nappies on her daughter while looking for the right moments to place Hannah on the potty.
Making a small "pssss" sound, parents encourage the child to urinate. And with a little grunt, they try to stimulate a bowel movement.
Nappy-free advocates say the best opportunity presents itself after a baby wakes in the morning or after a nap and a few minutes after nursing or feeding.
After a while, the parents begin to recognise and mimic the telltale signs of an imminent event.
At about six or seven months, the baby learns to take a seat and to signal her requirements to mom or dad.
"Now she lets me know when she needs to go, occasionally she uses sign language or when she's in a sling she pushes me away," Rothstein said.
The fledgling nappy-free movement still has only a small following and runs counter to prevailing attitudes in a country where it is not unusual to see four-year-old children in nappies playing in the park.
The conventional wisdom on toilet training has advised caution, letting things take their course.
According to the writings of the late Benjamin Spock, whose baby books have served as a kind of bible for many US parents since the 1940s, early toilet training can eventually backfire.
"During the first year there is a small amount of readiness for partial training in some babies in the sense that they always have their
first movement of the day within five or 10 minutes after breakfast," the paediatrician wrote in his best-selling book, Dr Spock's Baby And Child Care.
Although parents can place the baby on the potty seat to "catch" the bowel movement, it does not add up to genuine toilet training, because the infant has merely been conditioned to respond to the toilet underneath, he said.
"This is a small degree of training, but it's not learning because the baby is not really conscious of the bowel movement or of what she herself is doing," Spock wrote.
"She's not co-operating knowingly. And some babies who have been 'caught' early in this way are more apt to rebel later through prolonged soiling or bed-wetting."
Jean-Claude Liaudet, a French psychoanalyst, agrees.
"Toilet training must be carried out when an infant has acquired sufficient muscular control, and not at a pre-established age and under constraints," he wrote.
Yet Rothstein and other proponents say that early toilet training, far from being a return to the rigid ways of an earlier age, is a way of adapting to an infant's rhythms.
"Elimination communication should always be gentle, non-coercive, and based on babies' interests and needs," according to the DiaperFreeBaby website.
Some sceptics question if it's realistic to promote the idea when so many working parents lack the time required to monitor every toilet opportunity.
And others, such as Emmy Kelly of Des Moines, Iowa, wonder whether it has much to do with the child in the end.
"What your article describes isn't toilet training," Kelly wrote in a letter to the New York Times. "It's parent training!" - Sapa-AFP