I see. So "the reason" (as i think we're told to believe) she said to Tia she had to be present too is so she could listen to the "A Woman can't be head of the family" speech. Because she knows how capable she is, so she needed to show herself strong in front of Tia, so she needed her there to steel herself, and also she wanted her there so Tia could see her pass the first hurdle, a precedent. All that, so that Tia can hold a position too when she grows