Agree dental hygiene is initially the role of parents as it is the role of parents to ensure their children have a healthy diet, wash themselves, don’t litter, don’t get involved in crime, attend school, tell them a bedtime story etc but for many reasons it doesn’t always happen. As prevention is better than cure, then education for both children and parents may be necessary. If children have poor teeth what does the OP suggest? It’s all very well criticising attempts to improve heath by saying it’s the job of parents, but it obvious from the stats that many children need dental treatment that is hard to access. Surely we should be making dental treatment more accessible, improving education, and supporting those that need support.