[pessimizer]

That's because it wasn't risky to get a job as a helper to a working professional, learn their trade while doing the worst/easiest part of the work, transition to doing skilled work while having your helpers do the crapwork and the professional did inspection and finishing, then either taking over the shop from the professional, partnering with the professional, or opening your own shop with your already established customers.

So completely unrelated to the modern world.