With summer fast approaching, working parents face the challenge of arranging care for children. One issue is especially tricky and this is determining when an older child is old enough to stay home alone. Pediatrician Dr. Heidi Sallee says by about the age of 12, many children are capable of spending at least some time alone. Sallee suggests parents consider the ability of an individual child to think ahead and to react appropriately in the event of an emergency.