Don't the girls play together? they're not that far apart must be the age group difference if they don't?
I actually talked to daughter about the R between her and her sister. Even though there is a three year difference they get along great and really love each other. But, D13 is a different animal, she's very outgoing can walk into a room and take it over. I remember once a teacher saying at P-T interviews "D13 could run this classroom without me" and I replied "and I'm sure she'd love to!" D16 is more introverted, she's a great kid and fun to be with when you know her but she's different than her sister. But, they really do look after each other and care,which is so great to see and I told D so.
