I agree that it's terrific that your 9-year-old wants a SAK, shootist16. It shows that he shares your interest in knives.
I wasn't the best or most responsible kids to be handed a knife. I grew up in the days of watching Fess Parker play Daniel Boone on Disney. For some reason, watching Mingo (Ed Ames) throwing knives and hatchets, on that show, caught my attention. It first started with my throwing butter knives into the dirt, and that wasn't too big of a deal, besides getting dust/dirt on the knives' blades, and scratching them up a bit (more or less).
Then I either found my Dad's old Boy Scout knife, or he gave it to me to play with. Bad move. I didn't have too much, if any, "training" in the proper use and/or care of knives, and that is my reason/excuse for what happened to my Dad's Boy Scout knife. I heard the tip break off of that knife as it fully sliced into the ground:
Yes, that's the knife that taught me, the hard way, not to *ever* throw knives into the ground. Now that knife is mine, the ultimate of "beater" blades. If you could see the full length photo, in the correct angle and lighting, you would also see a few/several areas of rainbow colors, where I also experimented with heating the knife's blade with a match, you know, to stereilize it, as if for surgery. This was, of course, before I learned that knife steels are tempered, and that exposing them to a flame could ruin them.
I keep that knife "as is," to remind me to never abuse a knife again. However, if I *need* to "abuse" a knife, for whatever reason, that old Kinfolks is the one I'd choose to use.
GeoThorn