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.
Defines the services to be provided to Morro Bay by the County and the cost of those services payable by Morro Bay to the County under this Agreement. B. Schedule B - Certification of Insurance. Schedule B shall be maintained and updated by Morro Bay and provided to the County. IV. TERM