There will always be kids who don't get a strong family, whatever you do. You can certainly reduce this sort of thing (with adequate parental leave, financial parental support and broader societal compassion for parents (hard!)) but you can never reduce it to zero.
Because these children are the most vulnerable to begin with, they are the reason protections are required in law against e.g. marketing gambling products and junk food to children.
You will also always get people targeting kids, even outside of the law. Reducing the number of kids without a family still might be a lot more effective than regulating the world into being as safe as an extended family (although both would be nice).
Because these children are the most vulnerable to begin with, they are the reason protections are required in law against e.g. marketing gambling products and junk food to children.