I think you should go look up the definition of the word 'hypothetical', because I don't think it means what you think it does.
Delightful. Yes, again, that's clearly the problem here.
For the last time, what I have told you is a fact.
I think that's a definition you may want to look into.
If you can prove to me that kids have never once broken something out of impatience, I will personally rescind everything I say about the back plate of the New 3DS. But you can't, because kids do in fact break things out of impatience. And they will in this case as well.
Ah, now we come to the issue here. No, I don't need to prove anything to you. Rather, the burden of proof falls on you, to somehow prove that every - or even a majority, or even a significant minority - of your hypothetical 6-year-old consumers is going to, and I quote, "break [the system] out of impatience", because that's not just the crux of your argument, it's your entire argument.
Is that really what you got out of this, that I'm somehow saying that no child ever has ever broken anything? I'll give you the benefit of the doubt and assume that isn't how you're summarizing my position. However, your entire argument seems to be predicated on your belief that the very second this New 3DS is set in front of a child, it's going to be reduced to a small pile of broken plastic, stripped screws and charred circuitry out of impatience, which itself is predicated on the belief that Junior not only knows what the microSD card is, but has need or reason to remove it. Again, somehow
you would have to prove this eventuality to be such, and a widespread one at that, for your argument to hold the water you believe it does. Until then, it's less the fact you want it to be and more the generalization/observation/assumption that it really is.
Even better, I've not laid hands on a New 3DS (as I imagine many of us haven't), but if the microSD slot is covered anything like I would imagine it to be, exactly
what is Junior going to do to it to try and open it improperly while he's so busy being impatient for "mommy and daddy"? Is he going to try and undo the screws himself? Seems like he'd either manage that, or wouldn't, and at worst he'd scratch the casing in that area of the system. Is he going to try and pry it open with something? It would seem, in my mind's eye - and again, I freely admit I haven't seen what the cover looks like, so I could be wrong here - like there would be nowhere to find purchase for such an effort, and again at worst the system would get scratched up a bit.
It's just not an argument that holds all of the water you believe it to. It absolutely holds some water, that yes, there are kids out there who are impatient, impulsive and destructive enough to damage anything put in front of them, but that's true of anything small enough and vulnerable enough to sustain damage.