I mean if teleport stones were a thing in the FR they wouldn't need roads.

Pete - Hey Jo do you feel like walking to Baulders gate it's only 10 days walk?
Jo - Narrr i'll just teleport via the rune over there and avoid all the bugbears, Drow raiders, undead and other nasties along the road.
Pete - Okay lets do that, I forgot for the past 47 years of D&D we had to physically walk places until recently. For some reason we can just appear where ever the hell we want now which is great.
Jo - I know right? why didn't someone think of these convenient warp all over the joint runes before now?
Pete - I don't know mate, maybe just like all the food all over the place with absoluely no reason to eat it.
Jo - Not true Pete, I ate an apple yesterday and my leg grew back.
Pete - Oh yeah I just noticed you had a new leg, an apple you say? Was it magic or something?
Jo - Narr just an apple I found in a barrel.