Celebrity kids today often build their entire careers with social media, but that seems to the last thing that Jennifer Garner wants for her three children

Celebrity kids today can build entire careers through Instagram and Twitter, but that’s the last thing that Jennifer Garner wants for her two daughters and son.

The actress, 46, told Fox News in an interview published Tuesday that the idea of her children — Samuel Garner, 6½, Seraphina Rose Elizabeth, 9½, and Violet Anne, 12 — having social media scares her.

“My kids don’t have any social media yet, and I am terrified,” she said. “I think it puts so, so much pressure on kids at an age when they’re really vulnerable anyway.”

She also asked fellow parents for advice about protecting kids from the dangers of life online. “You know, if anyone has any clues, let me know,” she said, adding, “I am probably overprotective.”

Want all the latest pregnancy and birth announcements, plus celebrity mom blogs? Click here to get those and more in the PEOPLE Parents newsletter.