Not all mobility restricted people are in wheelchairs. It takes a bit, but I can climb steps, because I do use a granny stick. Still, it's nice when heavy doors have this, as it's difficult enough trying to open it and hold on to your cane.
You're welcome. Satyricon posted a good post, because few people would think about it. You'd get a laugh how I've climbed steps over the years, but fortunately I can stand on my feet most of the time. Those rails along the steps are a big help.