Chopping up balsa again

I never really 'pushed' my hobby on my kids so this Sunday my 17 year old son walks into the room after being in the bathroom and apparently was reading some of my 'library material' and has a 1973 issue of Aircraft Modeler in his hands and ask me if I ever built a plane ''using just plans" (I think this was probably the first time he ever pick up a magazine, even though the 'little' bathroom is full of them.) I said sure, in fact a couple times I'd just build right off the magazine plans making up scale, he got kinda excited and said "lets build one", I didn't know what to say ( I almost kinda thought he was sucking up for something he did) There was a rubber band powered 24" Curtiss Robin in the issue, so I said how 'bout this and he thought it was nice. So today I actually cleaned off the work bench as A.) It needed it and B.) If he came home from school and really did want to we could start. So this evening we started to build a 24" Robin, dug out the o'l Dremel scroll saw and cut some ribs and framed the wing!