When do you stop using stroller with your child?

I think this is really depending on your child and you will depend on your stroller for at least 2 years of age. Our kid is 20 months now and I still need the stroller when we go outside. After a short distance of walking, our son would want to be carried. So carrying him plus the diaper bag, etc becomes heavy for longer distances. For that reason I believe we will likely bring the stroller for at least another year or so.