I think fast travel is fine. I play games to wander so I don’t get the point but whatever.

My favorite result of purposefully not having fast travel/teleporting is on the nerd.nu Minecraft server. Most Minecraft servers just have teleports set up to get get everywhere, but this Minecraft server has none so people build huge minecart subways and nether highways to connect cities and towns into an organic transit network. It is a joy to just grab a minecart and just punch random city names in to go for a ride and see where it takes you.

None of it would have happened if the server had fast travel and it just makes the world so much more interesting.