In case of emergency, whether the kid is lost or has gone non responsive to calls or texts, it can be important to parents who want to be able to know where to find them in those situations. Furthermore, there are some parents who are simply strict and want to track their every movement; which could be very intrusive, make the kid paranoid, and even ruin the parent-child relationship. That’s my take on it.
Answer: They emphasize Vivien's adamant decision.
Explanation:
The stage directions revealed that Vivien has made an adamant decision. In this case, we can deduce that Vivien was going to do everything possible in order to get him.
This can be seen when she said that even though she had never wanted anything badly enough before but that this time, she could cry her heart out for him with no pride left and that she was going to have him.
J-ust love and sympathy
U-nited as one
S-urely will
T-ake us to a better world
I-n order to achieve justice
C-are for the rights of others
E-quality and humanity is needed