Fitzgerald Swanson is barely 6 months old, yet he has his own private Twitter and Instagram accounts.

Even before he was born, he was the main topic of conversation in a Facebook group dedicated to him.

Parents who came of age with Facebook, sharing their own lives online, are now sharing the lives of their children.

But just how much to share and on which platform is a sticky issue. Parents face thorny questions about everything from privacy and safety to oversharing and future embarrassment.

Mommy blogs put it all out there. Some parents post pictures but never their children’s names. Others try to keep their kids’ digital footprints relatively clean.

“It’s hard to know what to do,” said Fitz’s mom, Stacy Schwartz. She and her husband talked about the best way to share pictures of their son while preserving some semblance of privacy. The dedicated accounts, restricted to only approved friends and followers, seemed like a good compromise.

But at a time when technology changes so fast and no one knows what the future will bring, she admitted, as many a parent has over the years: “We’re just kind of winging it.”

The same concerns many adults have over online privacy apply to their kids: Who can see photos? What personal information are companies tracking? How will a digital footprint affect future job prospects?

When Amy Webb wrote a column for Slate in September advocating that parents share nothing about their kids online, it sparked a firestorm of commentary. Parents debated privacy in an era where online profiles enable targeted marketing and a future that could include wide use of facial recognition software.

“Knowing what we do about how digital content and data are being cataloged, my husband and I made an important choice before our daughter was born. We decided that we would never post any photos or other personally identifying information about her online,” Webb wrote.

The piece resonated with Brian Roberts of Minneapolis. He and his wife posted a picture of their daughter when she was born, but have since refrained from mentioning her by name or posting other photos.

“We should be allowing our children to make an educated choice about participating in (social media) at some point when they have more agency and more ability to make choices,” he said.

Sixty percent of millennial moms take or share photos of their kids using mobile devices, according to a report from BabyCenter.com, a pregnancy and parenting website. Those moms are also less likely to fret about sharing online than Gen X moms, the report said.

Jen Jamar of Minneapolis, who notes on her blog that “oversharing my life online is kind of my thing,” enjoys that connection with other parents.

“I don’t have a baby book for him. I couldn’t tell you when he took his first step. Wherever I wrote it down, I’ve misplaced it,” she said. “Online, we have this nice chronology of all these milestones. I can look back and see all these photos and share those moments.”

For most parents, social media sharing habits fall somewhere in the middle.

Orley Anderson of Burnsville, Minn., asks her son Jack, 9, before posting any pictures of him on Facebook.

“It’s his image,” she said. “They’re growing up in a world of social media. He needs to learn boundaries.”