Mommies out there, do you think is a must to engage confinement nanny?

Just want to understand why there is such a high recommendation for having a nanny since it only lighten your load for a month, but does not dismiss the fact that you still have a lifetime more to care for your child? Are there things i did not consider besides just having an helping hand to takecare of your baby only? I just don’t prefer having a stranger albeit experience person to care for my child. Would like to hear more perspective. #firsttimemom