You do not need a passport because they are both states in the U.S.A.
You would need one if you're going to Mexico from California though.
I think you may have got the state and country mixed up.
you can be any age
No , you do not need a passport unless you are leaving the US.
Yes, you need a passport to fly internationally.
Yes, you need a passport to fly internationally.
Yes, you need a passport to fly out of Tijuana.
Yes, babies need a passport to fly internationally.
Yes. You need a passport to fly anywhere.
Yes, children need a passport to fly internationally.
Yes, children need a passport to fly to Mexico.
Yes, minors need a passport to fly to Mexico.
Yes, you need a passport to fly from Tijuana to Guadalajara.
Yes you need a valid passport to fly from Glasgow to Spain.