9 month old cant sit up. He can sit in a high chair but if you put him in a sitting position he just flails around and falls back.
Hes crawling and can stand himself up but totally failing at getting him to sit up independently.
When do I worry? Is this normal?? I've been trying to practice with him all week but zero interest.
Any advice/thoughts are welcome. Am I just being silly? Did message the HV but it's been a week and counting so far.