OPP - Is she too obsessed with her kid?

Julia is worried about her friend who has a 4-year-old daughter. Her friend brought a bed into the nursery and sleeps in there every night. The mother and daughter duo often wear matching clothes, and it seems like they're never apart. Her friend has even brought her daughter to a girl's night dinner...where she was the only child present. Should Julia say something to her friend? What should she do?