Seems like Linda has numerous siblings, and some or all may still live at home. So the house is probably a busy place with family members coming and going. Amish parents are typically relaxed about their children’s whereabouts when they are school aged and especially as teenagers. Most homeplaces have at least a barn, if not additional outbuildings, and the Amish often sit outdoors in nice weather when they are relaxing. So it isn’t odd to me that it took them a while to realize that no one had seen Linda since church. Amish children finish formal schooling at 14 and then begin a full-time job or apprenticeship. There aren’t many helicopter parents among the Amish.