Thank you, folks,
this is more than I hoped for
I am sorry I did not come back earlier, but now I am back on it.
Those Snap Circuits look a bit cheapish to me, but I guess that is what kids go for these days. And I have to admit, this snapping knob solution is brilliant! Little Bits looks also funky, but I am not sure how well this would work for/with kids. The biggest drawback I see anywhere is there are seemingly just two kinds of sets:
The more educational ones with large parts, connected via large plugs ore some obscure connectors but looking boring and not of too much interest to kids that are not into that kind of stuff. On the other side there are those that are colourfull, easy to work and play with and somehow always lacking any description of what is going on there... Seems this is the tradeoff one has to make.
Is there anyone out there with kids? What would you think, can kids easily get the concept of a breadboard? The thing is, the connectors are not visible and not marked in any way, therefore I think it might be difficult for them to wrap their little heads around. Of course there are always the ultra-clever ones. I am talking of about 10 to 12 year olds there, so really for starters and getting addicted to that magic smoke as early as possible. Too bad (lucky, maybe?) I have no kids on my own to test that.