I've started a habit of sitting down with my son and taking them apart, screw by screw, piece by piece. He loves tools so he's into it 100%. The louder, brighter, and more annoying the y are, the more likely that they don't make it back together.
BTW., I just shared it with my cow-orkers, and the first reaction was: <<And so one day, you buy yourself a $1200 drone, then come home after work and see your kid smiling and saying "daddy, daddy! look, I took it apart all by myself!"...>> ;).
No, don't.
If he desconstructs his favorite electronic toy and isn't able to get it working again, that's an opportunity for a lesson on how to take things apart without causing (more) damage, how cheaply and non-repairably many things are built (and the value of good design), how anything is repairable if you're cussed and resourceful enough (and when not to be), or any number of other lessons, limited only by your imagination.