When do babies sit
My daughter started sitting up at 5 months by herself and has great posture. She sits and plays on her area rug.
Avery started to sit up around 4.5 months but wasn't really independent until 5 months.
I think Hayden started sitting around 4.5 months, but wasn't really good at it (as in I felt comfortable leaving her sitting without a pillow behind her) until around 6 months.
They do for me too, Theresa! I couldn't tell you when Bub or Mini started sitting on their own. I remember being very excited for them when they did, though!