I have always had Dog and Cats because I mostly rescue them, but not always. I am in my 70’s and have had to adjust what kind, size and age of animal I get.. It would be unfair for me to get a Puppy, Kitten or younger animal if I passed say 5 years from now. Where would they go? Also, Dogs need to be exercised. Large Dogs are more difficult to handle for a walk, especially when they see something they want to go after and pull. Dogs need to be bathed and played with. Their are many older animals to adopt that take less energy and mobility to take care of.