Many professions offer orientation and support experiences for professionals starting out in a field. Medical residents and law associates-even rookie baseball players-receive extended training, development, and mentoring (working alongside a seasoned expert) before taking on the responsibilities of a full professional. In contrast, novice teachers often are left to fend for themselves, with little or inadequate initiation into the profession.
Source: https://ebookschoice.com/how-to-get-started-improving-your-efforts-to-support-and-assess-novice-teachers/