...Therefore, males are smarter than females. While this is true that such claim would require deep research of majority of worlds population, we can still draw conclusions based on current empirical data.
It is well known, that majority of worlds discoveries have, historically, been made by males. While some speculate, that this is only the case because females had very few rights, it's nothing more than a speculation.
Since majority of worlds discoveries have, historically, been made by males it logically follows that males are more intelligent. Any other conclusion will require additional evidence.
Since we are talking about time period of more than several thousand years, I will not post evidence and examples of every single discovery, since that would be unreasonably time consuming.
Claim itself is, obviously, correct, but its implications are not. We limit childrens rights because they have not yet developed enough to have valid reasoning. Because of this, being updated and informed will have (in most cases) no effect. Information needs to be processed in valid way. Since children are generally not able to do that (which is why we limit some of their rights) keeping them informed and updated serves no purpose. To disagree with this would be to suggest that kids can have valid reasoning and therefore their rights should not be limited.