I don't know what kids lean today, but I wish I didn't have to lean Latin (yes, the ancient dead language) and learn about economy, money and banking instead. I wish I learned integrals before physics. I wish I learned chisese instead of french. Lots more.
Those are all sensible things to do, but at the end of the day we are talking about kids not learning the material they're taught. I'd like the material to improve too. Our government creates a very bureaucratic society and then teaches kids absolutely nothing about navigating that bureaucracy, this is an abysmal failure of education. But I think the methodology fails when it can't even demonstrate that it teaches them the subjects they're actually being taught.