Joanna Fortune: My teenage daughters have started to argue

The fact that your girls have recently started arguing may not be related to their differences in skill sets and abilities — it is more likely due to a developmental clash based on their ages and stages of development.

The fact that your girls have recently started arguing may not be related to their differences in skill sets and abilities — it is more likely due to a developmental clash based on their ages and stages of development.

My 15-year-old daughter is doing well at school, is sporty and makes friends easily. However, her 13-year-old sister lacks confidence and has to work very hard to keep up with her homework. 

I love both equally, but find myself worrying a lot about my second daughter. The two girls have started arguing a lot lately. Can I ever expect them to be friends when they are so different?