IMHO, I think it's good to have some exposure to low-level stuff. There's a good amount of work you can't do without understanding the low-level stuff, but there's more work you can't do well without having at least an idea of the low-level stuff.

Start the kids off with high level stuff, but make them do some embedded systems on their way through. At least for an engineering degree. Also, do a bit of lower level communications somewhere in there; expose them to tcpdump/ wireshark, but they need not develop expertise.