hey! nobody said it was gonna be easy! no, but seriously tho it should require something more than nothing, and maybe if the road building gets more expanded (maybe in some ways mentioned in this thread) and the roads themselves give more rewards when building them in high quality to another tribe i dont see that as being a bad thing if it takes some effort.
I definitely agree that there should be a cost per tile for road. I think roads requiring bricks is a good idea we just need a practical means by which to move them to the end of a partially completed segment of road.