That's normal, for the kids at camp. If they're lucky, they have a parent like Sally Jackson, who lets them live at home 9 months of the year and makes badass cookies.

"Are they musicians? Do they go on tour?" Like Will's mom. That's the only mortal example he has of a parent not being around much. His life only has a bird's eye view of normal so it looks like most other kids, even teenagers, have parents in the vicinity. "I have the cabin to myself most of the time at Camp Halfblood."