Dogs need love plus nutritious food, a warm and cozy place to settle in your house( not with your garage or yard) , toys, vitamins, veterinary checkups , oral and brushing.
A slip by one people could end with you and him on the ground, and older dogs are particularly prone to injury from falls. https://Graph.org/Caring-for-The-Senior-Dog-The-Ultimate-Nutrition-Manual-05-27