Do you want your protagonists to have siblings? If so, how many and what is his relationship with them like?
Yeah, I think 4 might be for the best. I want them to be very lovey-dovey, but not possessive.
What about his parents? Are they living, are they dead? How is his/her relationship with them?
Having parents around the Protag's going to limit what the Protag can do, so I don't think Parents are necesssary.
Do you prefer fantasy or sci-fi like add-ons to your protagonist's personal issues? Do you prefer your protagonist to be mundane?
I want the Protag to be unique, so yeah, this'd be nice.
Do you prefer him to be poor or rich? Do you just want him to be normal?
Poor, because It's kind of funny when I see poor Protag trying his best to be cheap.
Is he free to move about, or is he somehow restricted by circumstance?
Well, because I answered poor before this question, so I'm gonna have to choose restricted.
How does society see him? Is he the child of a criminal or maybe that of a brilliant scientist?
I want the Protag to be condemned and hated by society.