Image, Stock Photo Toddler girl in a sunhat holding onto the net at a tennis court on a hot day; baby cruising and learning to walk a developmental milestone

Toddler girl in a sunhat holding onto the net at a tennis court on a hot day; baby cruising and learning to walk a developmental milestone tennis court court baby infant child 6-12 months cruise walk learning learn milestone develop developmental gross motor skills skill touch sensory pull up rolls sun safety sun hat childhood memory retro public grasp hold hot move movement safety watch observe help danger worry first time parent dirty germs shadow explore adventure parks and recreation fun stripes print