Since you asked, I do think it is odd that your grandchildren sleep with you if you have other accommodation available for them. Also, a nine-year-old should be able to bathe or shower alone. I would worry more about lack of independence at that age than anything improper, but at age 9 I would expect a boy to be more modest than you are describing.
Free printable topographic map of Morro Bay (aka Moro Bay and Bernard's Bay) in San Luis Obispo County, CA including photos, elevation & GPS coordinates.
Cams & Reports Report Summary (View all Central California reports on one page) Piedras Blancas Pico Creek San Simeon Moonstone Santa Rosa Creek Cayucos Pier Cayucos Overview Morro Bay North Morro Bay Morro Bay Harbor Entrance Morro Bay Harbor Morro Bay Boat Launch Morro Bay Overview Baywood Beach Cable Landing Avila Beach Shell Beach Shell Beach ...