It's perfectly normal if your newborn doesn't show caution with “stranger danger.” Stranger anxiety typically emerges much later, around 6 to 9 months. It’s a healthy, expected part of your baby’s cognitive development that signals their secure attachment to you – which is a good thing!
Some babies are generally more social, while others are more sensitive to their surroundings and interactions. Whether or not your newborn loves being held and passed around by others – or whether they cry and insist on returning to your familiar arms – is just a matter of personal preference and individual temperament.
As long as your baby is showing other signs of healthy development and forming connections with you, there's no need to worry if they don't seem wary of strangers just yet.