Mine are both, i think it makes no difference at all except i think you have a closer bond with a dog kept in the house and i think it would be harder to come to terms with losing that dog out working, currently mine live outside and only just recently so is my 8 1/2 week old pup, i find it easier with them being outside although if i had my own home i would probably have them inside, i never knew what it was like to lose a dog before until last year when i lost my 10 month old pup, now that dog lived in the house with me from 8 weeks old, went anywhere and everywhere with me and generally was