Mine use the doggie door and potty outside most of the time. But I have a couple who don't like to get their toesies wet if there's so much as a drop of dew on the grass.
Also, I didn't adopt Jordy from rescue until he was already 1 1/2 years old. He'd been raised in a puppy mill so he'd never been potty trained - we're still working on that & the puppy pads help a lot.
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He is your friend, your partner, your defender, your dog. You are his life, his love, his leader. He will be yours, faithful and true, to the last beat of his heart. You owe it to him to be worthy of such devotion. -- Author Unknown