Stroads never make sense, even with zero pedestrian traffic. They have way too many ingress and egress points, so they are wide, attempting to be fast, yet ultimately a significant crash risk, because there's a way in, or out, or something, ever quarter mile at the most. Tiny strip mall with 4 stores! A funeral parlor! A bank! a subdivision hidden somewhere? Sometimes, even straight out houses. All at 90 degree angles, where some traffic is doing 40, and there's no traffic lights in most of said interscetions.

Even banning pedestrians, we'd be far better off with fewer ingress points to fast roads that now need fewer lanes, and then the few intersections/roundabouts give access to side roads that are rated far, far slower, and have access to those store parking lots. The traffic that is going far is then detached from the one that is going close, the road gets faster, and the street is safer from fender benders. The diminished places where people stop fast and go will also lower stress on the physical road itself, leading to less places needing repairs very often, as the typical stroad turning lane does.