1. State level actors and well funded not for profits are fighting an information war to influence our kids. And they are very good at it. Down to having troll farms to talk one on one. Every time something new happens in the world, my younger kids ask me about what they saw on Tik-Tok and their initial understanding is shaped by a well funded actor, and is often completely a false narrative. The solution is be open and talk about it with your kids.
2. Criminals are even better at social than state level actors. They are smooth. And they are on platforms you wouldn't expect - like games. And criminals aren't all about fraud. They sell drugs, they try to physically steal in real life from your kids,they'll try to get your kids to do something embarrasing and blackmail them with it, and even can be human traffickers. Again, the solution is be open and talk about it with your kids - and make sure they know it's ok to ask, and it's especially ok if you think I shouldn't share this with Dad or they person is saying not to show your parents.
3. Sexual predators are even better at social than the criminals. The difference is that the predators can't hide behind national borders so they are very careful. Same solution as $#2, but this one is really tough because when your kids come to you about it, they may have shared something with the predator that the predator is using to extort them into hooking up. Don't attack or blame your kid, focus on making sure the predator never gets to them
I do not believe for a minute that social media was good for my kids as they grew up, but I'm not sure that you can even begin to fix it the way AU is trying to - regulating speech, association using prohibition is dipping a colander in the river to filter the silt.
I don't have answers to give. Certainly not a fan of the government approach of "everyone must prove their age online now", which I believe is how the AU law is done. (casual listening to Security Now podcast about this for a long while now)
The only "stride" I know relates to the gap betweeb heterogeneous elements in a contiguous array
(native english speaker who was a bookworm as a kid; I admittedly had to ask gemini to recall the general phrase that I had in mind)