Is my child ready? What UK and US guidance actually says

The UK and the US give different answers to the readiness question. Here’s what each one says, where they agree, and the checks that matter more than age.

“Is my child ready?” is usually the first question parents ask, and the answer depends on which side of the Atlantic you’re reading. UK and US guidance start from slightly different places. Once you know how they differ, it gets much easier to decide for your own family.

The UK view: don’t wait for the perfect moment

The NHS says most children can be potty trained somewhere between 18 months and two and a half. It also warns that waiting for the perfect time “can sometimes mean putting it off for longer than you need to”.

Some signs can help. Your child might tell you when they need a wee or poo, or when they’re wet or dirty. The NHS is clear, though, that you don’t need to wait for these before you start.

ERIC, the UK’s children’s bowel and bladder charity, goes further. It says it’s better for bladder and bowel health to stop using nappies between 18 and 30 months. It also points out that many children, particularly those with additional needs, never give obvious signs at all. In its view, waiting for signals often just delays things.

The US view: readiness first

The American Academy of Pediatrics (AAP) puts more weight on readiness. It describes signs that a child may be developmentally ready. These include staying dry for at least two hours, showing clear signals such as grunting, freezing or squatting, following simple instructions, and being able to get to the toilet and help undress.

In the US

The AAP says the average age for starting toilet training in the US is between two and three, and most children are bladder- and bowel-trained by about four. Other readiness signs it lists are discomfort in a wet diaper and asking to use the toilet or wear underwear. If your daycare or preschool has its own expectations, it’s worth asking about them early.

Where they agree

Despite the different emphasis, the two sets of guidance agree on more than you might expect:

No pressure, no punishment. The AAP advises avoiding power struggles. The NHS says to stay calm about accidents, and ERIC says never to shame or punish.
Your child is in charge of their body. As the AAP puts it, children control when and where they wee and poo. Your job is to set things up so success is easy.
Accidents are part of learning, not a sign you started too early.

Checks that matter more than age

Whatever your child’s age, a few practical things make a bigger difference than the birthday:

Soft poos. Before you stop nappies, the NHS suggests checking your child is doing soft poos at least every other day. Hard, dry poos or straining can mean constipation. Get that sorted with your health visitor or GP first, because painful poos can derail everything. (We cover this properly in a later post.)
A calm stretch. The NHS suggests starting during a settled period, not the week a new baby arrives or you move house.
The right kit. That means a potty, or a toilet seat with a step. If you use a step, the NHS says it should be high enough that your child’s knees are higher than their hips. You’ll also want plenty of pants and spare clothes.
Everyone on board. Partners, grandparents and nursery staff should all use the same words and the same approach.

So, should you start?

If your child is somewhere between 18 months and two and a half and doing soft poos, and life is reasonably calm, UK guidance would say there’s no reason to keep waiting. If you’re in the US, or your child isn’t showing many signs yet, waiting a little longer is perfectly reasonable too. Neither choice is wrong, and you can always pause and try again.

When to get help

Speak to your health visitor or GP (or paediatrician in the US) if you think your child is constipated, if training isn’t making progress, or if school is getting close and they’re still not using the toilet.