Logged in just to answer this.
It is QB64 or FreeBASIC or GAMBAS if you're coding for Raspberry Pi and Linux. Not Python. Not Javascript. Not Ruby.
If you're looking to transition from scratch to actually shipping apps, give Stencyl a try for free. Stencyl allows you to ship HTML5 and Flash apps (it's general purpose enough)and games <ith its free version.
Don't let your kids get stuck with the command line with Python.
See -
www.QB64.net
www.freebasic.net
gambas.sourceforge.net
See also monkeycoder.co.nz for yet another modern BASIC dialect.
You can get BlitzPlus and Blitz3D here -https://blitzresearch.itch.io/
And you can get Blitzmax (which also runs on Linux) here- https://www.syntaxbomb.com/index.php?topic=7.0