We have a two inch drop from front door to porch, from porch to walkway is a five inch drop. Using a walker is inconvenient navigating in and out of house. Especially coming in as we need to lift our walkers up to next level and make the step up. 
Thinking of adding a two inch high platform on porch that extends about three feet on each side of door. From the porch level to walkway I will make the slope 1/2" per foot instead of the usual 1" per foot. 1/2" per foot will make a gentler slope to navigate.

I will also add a non slip suface mat for better traction.