Procedural terrain generation

Why can’t we have a procedural terrain generation like in Minecraft ?
It would be great to explore a world for the first time, I think it’d be better than exploring the same world as everyone does, it’d actually feel like you’re exploring a new planet.
And we could even find unintentional Easter eggs like the far lands or some errors.
But I know how hard it is tho

this could be a side mode. the first two also didnt have procedural terrain generation

for a first playthrough a handcrafted world will almost always be better and the game should not use that. Maybe like a side mode as JetoCaris said