Either the job in question is a small subset of more common area of expertise, or it is simple enough that you learn the ropes as you start, or it is specific, but the industry is big enough that there are courses in universities on it.
One example – wineries. Been to sparkling wine winery recently. They have:
– a bunch of positions that require higher education in more generic food industry and in winemaking specifically – and local university teaches those.
– a couple extremely specific jobs – cleaning wine barrels from inside, handling bottles as wine matures, etc. They just hire people with no prior experience and teach them.
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