Because those industries are most in need of workers at the moment. And because those are the sorts of people I've known who succeeded (anecdata, of course). B

Because those industries are most in need of workers at the moment. And because those are the sorts of people I've known who succeeded (anecdata, of course). But I am biased by my own experience of being unable to find a way to move until I skilled up in development. "Idealistic physics grad with a spotty academic record who wants to help the Earth" didn't cut it. Also, they tend to pay reasonably well (though nurses are scandalously underpaid in too many places, which is shocking). In many cases, there's a "if you can make more than X you can get in" provision too, generally with some fairly high threshold. Last I checked it was around 154,000 GBP in the UK for instance (remember that dev salaries in the UK and most of the EU, for that matter, are incredibly low compared to the US).