Erin Mantz lets her two boys, Max, 11, and Zack, 8, use Instagram to keep up with their friends. She sees it as a normal part of social life for today’s tweens.
“I hate to say, ‘Everybody is doing it, so it’s OK,’ but if I block them from using it, I feel like it would be like when I was 11, my mom saying I couldn’t talk to my friends on...












