Is it possible to bring your kids into this hobby?

"I was this kid.  https://www.youtube.com/watch?v=7sWPHKU1XZU
What I mean, I actually did this, and almost as young."

You dream about it, you decide you will have it, then you enter kindergarten.

(That is how it went, if I remember correctly)

Great story and video glupson!  

Nope.

My teen son always reminds me that, to him, his earbuds through his phone sound better than my multi-thousand dollar home system.

I'm totally ok with this.  I wouldn't wish our disease on anyone.

I have three sons.  They're all hooked on audio AND on vinyl.  Fortunately, I have enough equipment to pass them my hand-me downs - speakers, amps, pre-amps and turntables.  
All three have respectable systems. For example, one son has Elac B6 speakers, an old Technics SL-1200 turntable, and an old NAD 3020 integrated amp.  

I totally agree with @erik_squires , building something will offer an understanding of how things work, a sense of accomplishment, avoiding a pursuit of consumerism, and perhaps most importantly provide a bonding experience of doing all that together. I’m confident it will be memory not forgotten.