How long have people learned skilled jobs through one-on-one training arrangements between a master craftsman and an apprentice?

The practice of individuals learning skilled jobs through personal training arrangements has a long historical precedent, dating back to the Middle Ages. During this period, apprenticeship systems became more formalized, allowing young individuals to learn various trades under the guidance of experienced craftsmen. This system not only facilitated the transfer of skills and techniques but also helped to establish professional standards within various trades.

Apprenticeships were prevalent in many fields such as blacksmithing, tailoring, and carpentry. The structure of these arrangements typically involved the apprentice living with the master craftsman, gaining hands-on experience while also receiving instruction on both the practical and theoretical aspects of the craft.

While the Industrial Revolution and other time periods did influence and change the nature of apprenticeships and skilled labor, the foundational structure and idea of the master-apprentice relationship originated during the Middle Ages. This historical context is crucial in understanding the evolution of vocational training and craftsmanship that persists in various forms today.