Footprints refer to the road and deeds left behind. Footprints represent marks, conquest and success. For example, when man sets foot on the land of the moon, the footprint declares that man has finally conquered the land of the moon.
Leaving baby footprints is a happy thing for mom. This little footprint is actually the baby's first ID card. Baby's footprint tattoo is very popular, you will see many people put baby's footprints on the body, using tattoos to express their love for the newborn.
Source: @bewoneart