Anyway school my kids are in uses older version of the inventor, librarian runs a class with that twice a week both my 8 and 6 year old LOVE IT. Meaning that is their topic of conversation and they remember which days they have it during the week.
Couple days ago 8year olds class had a bring your parent to school day so I did a presentation mentioning a game I hacked with a debugger as an ice breaker. Forget what I actually do for next 20 minutes all I was asked is how to hack Minecraft, how to hack some online game I don't know :o and not get caught. Blew my mind, teacher was looking sideways at me :)
Now I promised to compile a set or resource about modding Minecraft for the class. I am also thinking about setting up a website that kids can mess with using developer tool in the browser(super simple html with hidden "password" etc)