Yeah, but families are varied enough that the more you start talking about children inheriting traits from their parents, the more I side-eye things. For one kid to inherit it, sure. Two ... eh. Plus, girls get entirely different socialization and training than boys do, even when they're only children.

As for Aral's temper, Piotr has a temper. But he doesn't have the killing rages that Aral gets, and in fact never even sees one in person until that one scene Cordelia witnesses.