Yet if the point is to try to justify fast travel as it's presented in the current light, your character really doesn't have the choice. The character can't implicitly disable their chances for random encounters, getting attacked on the roads, etc.
If a dragon in Skyrim had a chance to fly down on the character whilst the character was walking around, there is no way the character can affect the raw probability of that occurring. If it happens, it happens, and the odds stand the same.
If the player chooses to FT, they force their character out of the world, out of the bounds of possible occurrence, out of any mechanic whatsoever.
So if your argument for FT is that you want to completely and unimmersively skip through anything that you the player don't want to go through on a whim, then so be it.
But let it be clear that boredom is nonsensical, and in-game consistency is incompatible with it.
Perhaps those that choose a single version of any mechanic they want, also want that to be the only mechanic. And they probably could offer a decent base for why it is they want that. I stated earlier that I'd rather have my least-favorite mechanic be the only one, rather than have all three be present. Is that a lack of consideration for others' playstyles, or is it a demand for in-game consistency as a whole over preference of how the individual gearworks move?