We have the doggy steps too. Jack uses them, but Rosie and Gracie learned to jump before we got them, and they won't use the steps at all. These steps are perfect for little dogs. We have a couple of labradors, and I wouldn't trust their weight on them despite them saying they could hold 70 lbs.
I think once they learned to jump they just figured they didn't need steps. Our cat also likes using them. She is 17 years old and has quite a bit of trouble jumping up on the bed.
__________________  Mommy to Gracie & Grandma to Rosie and Jack |