Yes, QBASIC. Back to the 1990s. DOSBox or something similar needed for it to work under Windows 10. But: the syntax is easy to grasp even for children who are not native English speakers, and the full-screen IDE with Large Friendly Letters On A Blue Screen seems to help the kids in maintaining focus. Modify your code, hit F5, repeat (infinite LOOPs under DOSBox may be "fun", though, since the program termination hotkey is tricky to figure out).
For teaching/learning the absolute basics of programming, QBASIC still seems well worth considering.
Going through this book with my son just these days, and I think he's doing great. It's a really well written book, too. Careful wording, empathetic towards the child-learner. A prime example of "new is not always better".
When we're done with the introductory book, we'll probably move foward to "Sprites in QBASIC" by the same author: http://tedfelix.com/qbasic/sprites.html