See: "extraordinary claims...".
In fact, the evidence supporting the idea that programming is special in this regard is precisely that you don't hear doctors talk about how they had spent their childhood years endlessly playing Operation, while meanwhile you do hear many great hackers say they spent their whole childhoods playing with computers (or, when unavailable, then the nearest facsimile: taking apart electronics, playing with Game Genie codes, building erector sets...)
It's also a counterintuitive claim, given the reality of what software development work actually is. A plurality of professional developers do little more than plumb connections from SQL database tables they understand poorly to front-end frameworks they didn't write. That's the practice that requires exposure from preschool, like a competitive concert violinist?
No. Not buying it. Sorry.
Changing both these things would improve the gender balance.
Actually, aerospace engineering might have a bit of that. Have there been studies to see if children with the opportunity and encouragement to design, build, and fly their own model aircraft might perhaps be more likely to grow up to be successful aerospace engineers than children who aren't exposed to such things?
I never claimed that, though. I think my actual claims were pretty mundane:
1. Children who play with computers have an advantage when, later in life, they're learning programming.
2. Young girls, in many places, are not encouraged to play with computers the way that young boys are.
http://www.ae.utexas.edu/news/students/683-more-women-ase
Undermines your point a bit.
The point of citing fields in your discussion with me is that there are quantitatively intensive fields which have significantly greater female participation than computer science, despite the dubious idea that computer science as it is actually practices is quantitatively more demanding than, say, the demands on corporate lawyers to structure debt and equity financing.
The point of citing fields in this particular discussion is that there are demanding technical fields in which practitioners generally get little to no exposure to the work until they approach the age at which professional software developers enter the industry.
Did you miss the distinction? I sometimes go "on tilt" in discussions and misfire like this too.