Ten-year-old Lola Roske grabbed her backpack and headed to elementary school for the last day of class, the final check on her to-do list before the unstructured bliss of summer.
At drop-off, her mother, Kellie Roske, was determined not to linger. All around her, parents were hugging their children. Teachers were brushing away tears.
“I surprisingly held it together,” said Ms. Roske, who for weeks had steeled herself for an “ugly-cry day.”