A lot of the game is talking to people, exploring dialogue options, and finding creative ways to complete quests.
If the dialogue and characters don't interest you then there's not a lot of reason to keep playing. Not every game is for everyone after all.
Since you're just hitting Vegas, I recommend going to the Lucky 38 and meeting Mr House. That really kicks off the "main" plot and might get you more invested.
A lot of the game is talking to people, exploring dialogue options, and finding creative ways to complete quests.
If the dialogue and characters don't interest you then there's not a lot of reason to keep playing. Not every game is for everyone after all.
Since you're just hitting Vegas, I recommend going to the Lucky 38 and meeting Mr House. That really kicks off the "main" plot and might get you more invested.