My two girls were around music and recording from birth. They would plunk on the piano I have in the studio, and they loved singing. I picked up some inexpensive guitars for them one christmas. In school, we got them a flute and a clarinet. They learned to sight read and played in the school orchestra in middle school. When high school came, playing instruments went out the door and they both stayed with the chorus through graduation.

Perhaps they will redevelop an interest or perhaps the musical drive will skip a generation.

I know for me, it wasn't just something to do when I was bored. Music was an obsession and a passion and I had a drive to play. My mom had to tell me to stop playing. Seriously! I would spend hours with my piano and guitar back in the day. I was also in the school band up through HS and took music theory 1 & 2 in HS. I started with piano lessons at age 7 when the Beatles were starting to get airplay in the US around that same time. Drums in school came next and at 14 I started guitar and fell in love with it.

I've seen lots of parents and grand parents drop a bunch of money hoping little Jr would be the next big thing in the music biz.... but 99% stop playing in a year or two. SO my advice stands.... spend a couple hundred to get some basic gear for a starter studio. When it comes to instruments, buy good ones for 2 reasons....
1. They are easier to play and sound good. 2. they keep their resale value better
If Jr is going to grab hold and do this music thing, you will know it. Then you can encourage him to bigger and better things but like the old "horse to water" thing... you can't force the love and passion. It has to be there on it's own, then you can guide it.

You can find my music at:
www.herbhartley.com
Add nothing that adds nothing to the music.
You can make excuses or you can make progress but not both.

The magic you are looking for is in the work you are avoiding.