I did the same thing in VV1, ended up not letting any of the females develop building skills past what they were born with. I nearly lost one of my villages to having almost all builders and no farmers. The skill hasn't completely died out, I let the guys still be builders. My male parent almost never has building in skills list though, healing and/or farming only, my females are the same. Pity that you can't keep scientist in VV1, glad that changed in VV2!