4-way stops are all to often inappropriately used for traffic calming, and fail at that.
Stops signs are often placed where a full stop is never required for the driver of any type of vehicle to be able to determine with accuracy if there is potential conflicting traffic or pedestrians.
Stops in and only in specific places like this (good sight lines at intersection approach on lower speed roads with low pedestrian usage) should be replaced with Yield signs.
If an intersection does not have good sight lines until driver is at the 'stop line' then that intersection should require a stop for all vehicles, as they should for intersections that have high pedestrian usage.