It can be quite challenging when there are many adults in a child's life, all with their own ideas of whats appropriate. Great work trying to set boundaries though. It always helps if there is some dialog between the 2 house holds, and keeping consistent boundaries where possible. It can be very difficult if there is tension though. Sometimes as parents we need adjust our expectations and boundaries for our children. Many young people have snapchat and instagram, especially at the 11,12,13 year age bracket. I think this could be a great opportunity for you to have conversations with your step-daughter about using social-media safely, and set the ground rules now as she has recently started using it.
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