Wishing people a Happy Birthday on social media is sort of a cop out: a way to spread tidings of good cheer without having to pull aside a waitress to request a secret birthday tiramisu to arrive at the table after dinner, or even go to a group dinner and figure out how to split the bill 8 ways to begin with.
Apparently the photographer was trying to get shots of Julia and her kids. And that does not fly. You're liable to hear things like "You get the f*ck out of my face.. do you understand me?" For instance.