Don't believe everything you see on TV.....
Even with their supposed lack of interest, these girls are smart enough to see where the Golden Egg lays.. How easy do you really think it would be to live in the Force household and NOT be involved in the family business (especially on the weekends, when your name is on the car..)? Do you think he'd let it slide? Hell, I'm surprised he waited so long already... Smart man, that JF...