Why don't more Mexicanos try and learn Nahuatl?

Many people think it's a dead and outdated language, but I think it's important to study the language if you really want to be in touch with your roots. Also the number system is very complex and requires you to multiply and add numbers as you count; so Aztec kids who were first learning to count were being taught higher mathematics at the same time. Quite an advanced culture I have to say.