A special report on children swearing at home. Household language standards in Australian families drawing on verified Australian research, studies, and expert commentary
Studies show that children swearing at home goes unaddressed in a significant number of Australian households, with 42.9 per cent of Australian students reporting disorder and disruptive language in their classrooms, more than 11 percentage points above the OECD average of 31.5 per cent.
The figures come from the 2022 PISA survey, which ranked Australia 33rd out of 37 OECD countries for lesson disruptions, and they were alarming enough that the Australian Government Senate referred the issue to a formal inquiry.
The inquiry’s final report, released in 2024 also confirmed what teachers had been saying for years: student behaviour and engagement in Australian classrooms is getting worse.
What Is Happening In Classrooms
Language is a symptom of something deeper. A peer-reviewed study from Queensland, published in the journal Linguistics and Education, found that teachers and school leaders across 14 secondary schools were contending with rising levels of student swearing, with real consequences for how they teach and how they see their profession.
The same data showed that a significant number of Queensland students were being suspended or excluded for verbal misconduct, missing school over language that had become socially normal outside of it.
Where It Starts
Researchers point to the home as the source. According to Bandura’s social learning theory, children learn swearing by watching and imitating their parents, and they are just as likely to absorb the absence of a consequence as they are any direct lesson.
One widely cited study found that by school age, children already know around 42 taboo words. The question experts are now raising is not whether children swear, but what happens, or does not happen, when they do it at home.
Parental reactions to swearing tend to be inconsistent, shaped by mood, context, and who is watching, which researchers note can leave children without a clear framework for understanding when language is and is not appropriate.
In English-speaking cultures, there are unspoken rules about who can say what, to whom, and in what setting. When those rules are never explained, children are left to work them out on their own.
The Case For Relaxed Parenting
Not everyone believes parents need to make a big deal of it. Dr Justin Coulson, co-host of Channel Nine’s Parental Guidance and one of Australia’s most recognised parenting voices, holds a PhD in Psychology from the University of Wollongong and has written that when parents relax about swearing, the thrill tends to wear off faster.
His published advice is to let the moment pass, explain how you feel, and ask the child to be considerate of others. His broader research also makes the case that controlling parenting is a risk factor for psychological and social problems, and that support and guidance produce better outcomes than heavy-handed discipline.
The key phrase in his position, though, is “explain how you feel.” The conversation still has to happen. What researchers are concerned about is not relaxed parenting but households where no conversation happens at all, where swearing goes unaddressed not as a considered approach but simply because no one is paying attention.
When It Crosses A Line
There is also a harder edge to this issue that Australian research does not avoid. Swearing casually in front of children is a different matter entirely from swearing at them.
The Australian Child Maltreatment Study, conducted between 2023 and 2024, found that 30.9 per cent of Australian children experience emotional abuse before the age of 18, with patterns including constant yelling, insulting, threatening and shaming identified as key contributors to long-term developmental harm.
Professor Daryl Higgins, Director of the Institute of Child Protection Studies at Australian Catholic University, described the findings as a sobering picture and called on Australia to stop treating child maltreatment as inevitable.
“We have to stop pretending that child maltreatment is this inevitable thing that we just send ambulances to the bottom of the cliff and clear up the mess once children have been referred to a statutory child protection department,” he said. “That’s too little and too late.”
What Experts Actually Recommend
Child psychology practitioners note that swearing in younger children often reflects developmental exploration, boundary testing, or emotional dysregulation, and that the reason behind the behaviour matters more than the word itself.
When swearing causes a natural social consequence, such as upsetting a friend, they recommend using that moment to discuss the impact rather than reaching for a punishment. Real-world feedback, they say, tends to stick.
The consensus across Australian research in child psychology, linguistics and education points in the same direction: the problem is not the words, it is the absence of any guidance around them.
Dr Coulson’s Three Es framework, which involves explaining why a behaviour is a problem, exploring what is going on for the child, and empowering them to make better decisions, offers one practical model.
For language specifically, it means a parent who tells a child that how they speak at home and how they speak at school are different things, and explains why, rather than either punishing them or saying nothing.
The Cost Of Saying Nothing
When that conversation does not happen at home, it falls to teachers to fill the gap, inside a school system already ranked among the most disorderly in the OECD and already facing a projected shortfall of thousands of secondary teachers. The home is the first classroom, and on the question of language, too many of those classrooms are running without anyone in charge.
Sources:
- Australian Child Maltreatment Study (2023/24) – Act for Kids / Australian Catholic University
- Senate Education and Employment References Committee Final Report on Classroom Disruption (2024)
- PISA 2022 Disciplinary Climate Survey – OECD
- QUT / ScienceDirect peer-reviewed study on student swearing in Queensland secondary schools (Linguistics and Education, 2021)
- Dr Justin Coulson / Happy Families (happyfamilies.com.au)
- Bandura’s Social Learning Theory applied in peer-reviewed swearing research (SAGE Journals, 2016)
- Psychology of Swearing – Association for Psychological Science
- Australian Senate Parliamentary Library Research Paper on Classroom Disruption (2023–24)
