That’s the best part! We’re all NPCs in other people’s stories _and_ the main character in ours. You can do and be absolutely anything or anyone you want. Just gotta bear the consequences and that’s it. Wanna live a homely life surrounded by loved ones? Go do it! Nobody is stopping you. Wanna galivant around the world having adventures with no roots? You can! And when you meet a local npc bartender on your adventures…
What a rosy view of life! There are no NPCs, everyone is a unique and wonderful snowflake!
Life’s funny that way. You can’t predict what an individual will do and yet predicting what a crowd will do is so easy we have entire engineering and social disciplines based on manipulating crowd behavior.