Because it's not the same Grove Street. Old Los Santos is a different era, etc, the fact that both Los Santos have a Grove Street is Rockstar throwing fans a bone.
Is there actually a source on this? The whole "different eras / different continuity" thing seems to be nothing more than fanon, invented by a small group of nerds on the various wikis. And even if it did have "official" sources, the whole idea would still be complete rubbish.
Grove Street is Grove Street. You can update the layout of everything else in Los Santos, but The Grove is sacred.
Are you that dumb? R* made the entire different universe theorys themselves. Good job on calling R* a small group of nerds.
Sources or it didn't happen.
And anyway, I know reading isn't your strong suit, porkchop, but I already addressed the issue of Rockstar themselves intending there to be two alternate universes, or whatever other DC comics bullsh*t cliche it's supposed to be. So yeah, I AM calling Rockstar nerds. Fat, greasy, neckbearded nerds who suck at keeping a coherent, ongoing narrative together.
Sorry if that hurts your feelings.
theres PLENTY of sources. just requires some simple finger work on that keyboard sittin in front of ya.....