Fair enough. Thought I was asking in the right place. There used to be a high level of musical focus here. I'll just stick with suggestions from fellow musicians with kids. Thanks for your thoughtful responses.
As an accomplished composer and graduate of Berklee as well as a father I can only shame you from the bottom of the heart for your lame as fuck sarcasm.
You want to encourage the kids initial forays into music? Do some research and find a class for them to do in a group like we did. It'll give them exposure to a lot more and save them the disappointment of being shut down by the parental units on the regular.