Sure. We've all watched an increasing number of these people arrive in the software industry over the years. But they are not representative of everyone. Plenty of people can't force themselves out of bed in the morning for money alone. If they could, they'd be working in software.

> Jobs like factory workers and postal sorting etc. have high turnover because they offer neither interesting work nor good pay.

Manufacturing especially offers the illusion of interesting work. In fact, there is a whole political thing going on in the US right now trying to increase manufacturing job availability because of that illusion. I expect you are right that people are going to find out that it isn't what it seems, but so long as they believe it before they try it... Software, on the other hand, doesn't even try to pretend.