Both BotW and WoW also made exploring the "empty" areas rewarding (they're not actually empty, and there are things to find).
Weirdly, that's what every FFXI player did almost every day and for years, until they finally added fast(er) travel options in later expansions. Even using the Chocobo to increase run speed, it took 30+ minutes of travel to get to any end game content. And it was very easy to accidentally die along the way in places where nobody could resurrect you without also dying themselves, and then you would need to make the entire trip again. It was absolutely stupid and a complete waste of time, and yet I have nothing but fond memories of it.
But literally days of walking would be too much without something (either plot along the way or fast travel).