The "move" from an agricultural economy to an industrial economy didn't end agriculture being a significant part of the national economy; agriculture just lost relative share of GDP. Similarly, the "move" to an information or services economy isn't necessarily going to eliminate either agricultural or industrial work. China, for example, has its tech giants (Tencent, Alibaba, etc.) but it also has vast industrial capacity (e.g. Shenzhen) and agricultural capacity (e.g. the largest pork production in the world). American education deciding to push children towards information-economy jobs that were a poor fit for their talents, neglecting classes like shop skills that were once common, was a mistake and certainly not inevitable.