How does learning a language as part of a professional skills acquisition represent significant risk when the alternative you're proposing is not learning any new concepts at all?
Your proposed cost model doesn't work when you're not choosing between N options and rather choosing between selection or no selection whatsoever.
You're probably more interested in modeling it as an OSP.
Nope, I don't believe you ever gave me the benefit of the doubt—your undoubted assumption that I was just throwing rocks perfectly explains your arguing style ;)
Very well. You cannot help me, indeed.