my son is 1yr old but not sitting on his own and also not crawling till now he is actively playing recognising also to all . what to do please suggest anyone.

A. Okay so it’s a delay in both the milestone specially in terms of setting because if your child is learning to walk with support and not crawling then it’s not a problem and if your child is not even doing this then it is an overall deal in physical development you should immediately check with your doctor please