My first computer interface was a command line. I was five.
**** CBM BASIC V2 ****
3583 BYTES FREE
READY.
I learned that by telling things to the computer (via the keyboard), it would obey commands or remember information. This actually isn't terribly hard for a kid to grasp, though this level of sophistication probably won't work with a kid who's much younger than 5 or 6.
Seconded. My son was playing basic educational games on my wife's iPhone from about 8 months. He's nearly two now and uses the iPad without an issue, switching apps, watching shows. He even knows how to open iPlayer and find his favourite BBC kids shows. Never ceases to amaze me.
Agree. Android phone, or iPad. Amazingly easy for kids to use.
I'm skeptical that teaching kids starting with a command line is always a good approach.