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In the popular Japanese TV series , very young children are sent out into their neighbourhood on their first solo errand. The release of this long-running series on Netflix this year a among Western viewers about children travelling around their neighbourhoods on their own when only two to four years old.

felt it would be challenging, if not impossible, in their own neighbourhoods to give children such liberty. expressed longing for a time when children in their countries had similar freedoms.

Another popular TV show, Bluey, depicts the realities of children’s transport in Australia today. The family’s young children are mostly seen travelling in the back seats of their parents’ 4x4s, roaming only houses or childcare centres.

In , the father recalls a time when at age 10 he and his peers roamed freely on BMX bikes around a holiday town. His children are shocked that he walked alone to a campsite shower block (“hey, it was the 80s!”).

The contrasts with Japan raise the question: how can we rethink our cities so children can once again get around safely on their own and benefit from diverse neighbourhood experiences?

The cultures and policies are different

in Japan, of children have walked or cycled to and from school. Even manage the trip on their own. Children’s levels of independent mobility are .

The gently initiates children into community participation. In Old Enough, community members keep an eye on the children and help them along the way as they complete their errands. The youngsters develop confidence to navigate their local neighbourhoods.

Beyond personal and community values, what changes might make this possible for our own children? Our research on Japanese and Australian cities explores that make cities child-friendly.

In many Japanese cities – – urban policies support low-traffic neighbourhoods with people-centred streets. People can walk to nearby shops and services because creates a neighbourhood blend of housing, retail and public services, while transit-oriented design means communities are built around public transport hubs.

Japan’s also reduce neighbourhood car traffic. A on overnight street parking is strictly enforced. Street parking is for young children.

Most buildings are exempt from minimum parking regulations and many homes and businesses have no parking. They lease nearby if needed. Parking lots in cities like Tokyo are typically small (the size of one housing plot or less) and some use space-efficient car-stacking technology.

Because of these policies, many Japanese urban neighbourhoods function like ““. Most car traffic and parking is around main roads. Inner-neighbourhood streets have very low speed limits (often around 20km/h) and are relatively car-free.

Cars are “guests” passing through neighbourhoods that belong to walkers and cyclists. Drivers give way to pedestrians, including the little ones in Old Enough, when they raise a hand (or flag made by their parents) to cross the road.

Our streets were once the domain of children

Australian children had before we became a car-based society. , children as young as four were able to venture out on their own.

While children’s ability to get about on their own in their local neighbourhood , in Australia independent mobility has plummeted in only a generation or two. What parents once did unthinkingly, their children now cannot contemplate.

of children were driven to school in the 1970s. By 2003, it was nearly 70%. Australia’s overall rates of walking and cycling to and from school since then.

School drop-off chaos is a recent phenomenon. by parents include increased distances to school and other destinations, and fears of abduction or even others’ judgments. Escorting children on their travels is often seen , and not .

While risks to children are real, perceptions of risks and of who is responsible for children’s safety reshape places and lives. The priority given to car traffic and street parking has led to cities being rather than children and their needs.

When cars first appeared in American (and Australian) cities, the street was seen as the domain of children. made now-surprising to children having a right to public space, protected from:

“[…] the occupation, by moving and parked automobiles, of larger portions of the streets, thus detracting from their safety and depriving children of the privilege of quiet and open spaces for play”.

Since then, zoning, and even responses to unsafe roads such as have deprived children of the freedom to experience their neighbourhood on their own.

Many good reasons to reverse the trend

Allowing children freedom to move safely around their neighbourhoods has . These include physical and mental health, sense of belonging and place, socialisation and , and even .

People-oriented streets also have : improved public health and safety, better air quality, less noise, more green space, reduced heat and flooding, and more equitable communities because of non-car transport options.

The contrast between Australian cities and Japan, and our suburbs of the not-so-distant past, raises challenging questions. Perhaps the remarkably child-friendly outcomes we’re seeing in Japan can inspire us to rethink what kinds of neighbourhoods are possible – and what kinds of lives our children can have.

Rebecca Clements receives funding from the Henry Halloran Trust at the University of Sydney.

Elizabeth Taylor receives funding from the Australian Research Council (ARC) and the Australian Housing and Urban Research Institute (AHURI). She has previously received funding from the Henry Halloran Trust, the City of Melbourne, Intelligent Transport Systems (ITS), and the German Academic Exchange Service (DAAD).

Hulya Gilbert does not work for, consult, own shares in or receive funding from any company or organisation that would benefit from this article, and has disclosed no relevant affiliations beyond their academic appointment.