I think if your dog is generally well cared-for it's not a big deal. The alternative would be for your dog to be on the streets or in a shelter (assuming you rescued it) so it's just good that you're giving it a safe, loving home. Dogs do need stimulation from things like walks and playtime but it also depends on their individual personality and I feel you can also sometimes tell if they're not getting enough because it will show in their behavior.