It's worth placing paths before habitats if you can. If a habitat barrier is too close where you want a path you may not be able to place it.
Hay Paul, We had no collisions for rides and scenery, why can't we have no collisions for habitats? Would this come in the future? As us creators dislike the fact that you cannot put paths next to the fence, a small gap always exists, which is a tad unrealistic if you are working with glass barriers or elevated/sunken barriers.
As you can see here the glass is right next to the path, it looks so nice! I would love to be able to do this.
Next to this it has a lot of other functions outside of habitats.
Planters/Retaing walls, and ofc organic building walls.
Hope to hear a reply
Cheers Woody