EarlJam
Established
Earl - I'm going to stick with digital I think, I'm a bit of a purist and shoot film but a 6 year old has a short attention span and also the ability to experiment, whether on the screen before taking the picture (backlighting, maybe AF lock) or by taking several and reviewing, is good for a learner. I do think a proper VF is the way to go in the end, and with a longer lens with its shallower DoF then things like aperture start to make more sense. Fuji may be a bit pricey for even me for now though! Such a shame you can't convert the old film cameras to digital, so many good ones for peanuts. I doubt a piece of technology like that would have passed me by!
I should have clarified - the Fuji was purchased used, a little worn but in otherwise good condition, at a decent price. My grandson is just now 5 years old, so has grown up with the instant gratification of digital images. As you note, digital is also much more accommodating when it comes to shooting lots of pictures and experimenting with camera settings. We will go out and shoot film occasionally, maybe 3 or 4 rolls per year, and he's learned to wait patiently for the prints to return. When he's a bit older and once I have some space cleared, my hope is to have him shoot B+W and process it with me, at home.
Re digital conversions for 35mm film cameras - I think that's the holy grail for most of us. There have been several attempts, going back to eFilm in the early 2000s, and a few more recent back replacement schemes, but so far I haven't seen anything even remotely practical make it to market.