Neil, clearly from the quality of your posts you are no academic. You completely missed the point I was making, and perhaps try doing a little reading and research once in a while.
Three pinball related websites that I run show in the demographics reports that most users are men between the ages of 34 to 47. You can cross reference that with multiple other sources, anyone who collects data. Go ask distributors. After 47 it tapers off quite steeply, and there's very little from anyone under 25.
But do women buy and play pinball? YES.
Do men in their 90's play pinball? YES.
Do kids under 16 play pinball? YES.
But this is not the primary market of buyers and players.
It'll always be a niche hobby and it'll continue to shrink because there's no enough uptake from younger kids. 20 years from now there won't be enough buyers to keep companies like Stern afloat, although it won't matter to you because you'll be in your grave by then. Sorry to burst your bubble.