I need to have this Principal Financial commercial explained to me. My first impulse is to like it cause it's warm and fuzzy and family, ya know? But then I'm wondering how hosting your granddaughter for less than a year to finish her last year in HS would really screw up your entire retirement financial plan. Plus, the dad is relocating, not being fired or anything so I would assume he'd kick in for her expenses. (Also that girl looks mid-twenties to me FWIW)