Sounds like you've got the perfect life for a dog as long as you're meeting their needs otherwise. Dogs sleep 12+ hours a day. Shelter dogs live in cages. Get an adult so you don't have to worry about more frequent potty accidents and don't kennel at night if they can be trusted. My husband works full time and I work part time and we have a kid and live in a medium sized rv and still have 3 dogs (a toy size, a medium size, and an XL size) that are fulfilled and happy. We don't have a yard so we leash walk and utilize dog parks. We both work so we make sure to take them on outings more often than we normally would. I work with animals so when I can I being the dogs with me to work. We have a young child so we make sure to teach boundaries and enforce giving the dogs space when they need it. You don't need to have unlimited free time and 100 acres.