If you're a dog, you'll never be self-conscious about your genitals and the world is your bathroom. You'll never have to squeeze into tight denim pants or small talk your gynecologist when she's knuckle-deep. Sure, you might live in a carpeted van with a convicted flasher, but as long as he lets you lick his face and keeps plenty of Snausage on hand, you're happy.
Besides the whole neutering thing, it really is a dog's life.