my yorkie strictly goes to the bathroom outside since day one. She was crate trained as a puppy and potty trained outside. it was tough work and accidents happened but now she can hold it 12 hours (mommy likes to sleep on weekends sometimes
) Morgan goes outside around 8:30am before work/school until 3:30-5 when someone gets home, then she'll either ask to go out another time or wait until bedtime.
i should add that my yorkie is 4.5lbs and 3 years old now.