Maybe I'm old school, but I never believed the trade-off of personal information was worth the benefits of social media. (That's another discussion.)

In instagram and twitter, you do not have to write your real name. Just choose any user name, like we did in this forum, and it is acceptable. I am not very knowledgeable but I think only Facebook and LinkedIn you have to put your real name . Even in LinkedIn, I have seen many whose chose the label (LinkedIn member) and no photo.