The idea that nudity is automatically harmful to children would be laughable if the consequences were not so disastrous. Try comparing the teeenage pregnancy figures for prudish countries such as the USA with those for countries like Denmark or the Netherlands. That pattern repeats time and again. Censor the human body and children will find out by experiment, often with disastrous consequences.

Even the law implicitly recognises the flaw. It does not combat what is harmful to children. Instead it targets what offends some adults. When the law is based on prejudice instead of fact then it can be expected to make things worse, not better.