Since when the niece (whatever her name was, been a long time since I last played) is 14? You're either missinformed or retarded, and honestly I don't know which one is worse.
Says multiple times through the game the girls are in their first year of highschool. There are 4 years in highschool, people graduate at 18. Are you able to do 18-4 by yourself or do you need help with that too?