I just turned 30 and I can still vividly remember the first kit I built when I was 7.
It was Monogram's 1/72 snap together F-4 Phantom. Not five minutes home from the toy shop, I was into the box, twisting parts off the sprues. I had the thing slapped together in probably under 10 minutes (a personal modeing construction speed record I've yet to equal or better) ;-)
I "flew it around the house for a couple of weeks, then decide maybe I should paint it (No, I still don't like to talk about that) :-)
After painting, I hung it from my bedrom ceiling. I was bitten by the modeling bug and that Phantom was joined by Revell/Crown's 1/144 B-52 Stratofortress and Revell's old 1/48 F-16 Fighting Falcon in my bedroom's stratosphere. There were also many others that I don't remember so well.
I no longer have any of those old kits, but I've seen that old Phantom kit re-issued a couple of times and, If I had kids who wanted to take a crack at this hobby and that kit was out there somewhere, I'd probably try to get them to cut their modeling teeth on it. It may not be the "best" Phantom kit ever made, but the fun factor is there. :-)