Villager Pathfinding in big cities

I am someone who likes to build big villager cities in creative mode and a major issue that I keep haunting me is the villager pathfinding. In cities where I dense 4 story buildings next to each other, villagers seem to forget how to navigate. They walk into walls and not towards the staircases and when they do reach the stairs they climb to the top and stay stuck there. I am kindly requesting that Mojang in future updates (hopefully soon) can fix these issues to allow villages to travel easily in stairs, roads, and multi-story buildings. This could also mean tweaking the willingness of villagers to walk on certain blocks like smooth stone slabs. This would improve the pathfinding in all villages and cities people construct and would create room for minecraft to make naturally generating cities without pathfinding issues.