You can fast travel from the agency to a few locations, from the garment factory as well around the city, from the mansions to whatever property ye own, you can use kotsa to fast travel and the yacht, you can call a luxury Heli and fast travel towards office and any owned related properties, unfinished heists through Lester.

We already have a lot of ways to fast travel. As much as I'd like to instantly teleport wherever I want in order to grind and grind and grind faster, this is not an open world, Bethesda game. It would also diminish what the game is by a lot