You are able to guide your bubs to sit by propping them up and seat behind them incase they were to fall backwards. Importantly, their neck control must be good so they are able to balance better. Babies develop at their own phase. so dont worry! My 11mo son is unable to prop himself into sitting position yet.
Thanks Jorelle. Because I have heard that sitting is a prerequisite to feeding the baby with solids that's why I'm worried that ny daughter can't still sit on her own and she's 5-m.o already.