I'm sorry, but this is plainly obvious. Now there are a lot of useful comments in this thread about IT ageism and all that, but the wording of the submission is plain as day to anyone who cares to read between the lines: For continuing in IT you mention no particular positives, and harp on the negative aspect of having to stay up to date and 're-invent yourself'. Whereas w.r.t. management you only say that you seriously enjoy doing it and are seriously considering spending the rest of your working life on it.
Granted, you then go on to imply that management is for senile old men, but this only serves to clarify to your audience why you're having this issue: you have deep-seated preconceptions as to what type of people actually go into management, and while you respect the work itself and would like to shine in that respect, you can't get past your own mental blocks of seeing them all as Dilbert-styled PHBs.
Well, by the power vested in me by Slashdot, I officially set you free. Go forth and manage, AND stay up to date on tech, and be the good manager that will render Dilbert obsolete. Use all the grey matter you have - and frankly you will need to - to properly challenge your talented techie workers while using them to the best of their abilities and making the latter obvious to those above you.
I wish you all the best in your management career. Remember, while it's not the same as tech work, don't be afraid to treat it the same when it comes to research - there are innumerable useful books written to help ease you into management coming from any techie standpoint.
But the key signals they're picking out of the air don't include the layout. For bonus paranoia points (and since fairly elementary pattern recognition can be applied to this issue), use a rotation of 3 or more keyboard layouts changing at random intervals with a very minor on-screen notification. Now they need to be rocking TEMPEST, which has a much shorter range than this technique according to TFA.
(Extra tinfoil points for reprogramming your keyboard's microcontroller to rotate the key codes away from the default for your model. Extra extra points for using a new schema whose usage pattern would be reasonably close to the expected.)
Honestly, the debate seems moot, given your extremely pertinent point re: feral children and the morality thereof.
Really, to do this in anything resembling good conscience, we'll have to raise the child semi-normally, and as soon as we do that it's not even close to an 'outside observer'. I find it funny the way so many articles seem to treat this as essentially raising a dead neanderthal so we can see how neanderthals would view us, when really all we'd be doing is bringing otherwise extinct DNA into modern society. Whoop dee doo?
Logic doesn't apply to the real world. -- Marvin Minsky