I’ll write what is worth playing RDR2 for
1) Each mission is interesting, be it story-based or just helping a passerby, because of this the world seems alive
2) Hunting and studying herbs becomes really interesting and instructive if you first doesn’t drag you on, then in a couple of hours you won’t be able to tear yourself away from tracking down a badger or beaver
3) A lot of interesting little things that make the game more exciting (for example, if a blind beggar is a deceiver, then if you point a revolver at him, he will raise his hands and you expose; or for example, a horse can lead its rider across the floor if he catches his foot in the stirrup)
4) The storyline is unique and you want to go through it to the end, and moreover, you want to complete it and play the first part of RDR.