My 8 year old son also loves this game, he got along with it immediately. He now has a few hours playing time behind him and even manages the challenge. He is also "special", so don't wonder about the noises he makes:
BTW: When will the next beta be released? Would be ready to take the heavy burden of a beta tester on me, if necessary ;-)
If it hasn't been mentioned yet: The game would definitely be a big seller on the Oculus Quest. The automatic room measurement of the quest makes it perfect for this.