DS6 was my earliest walker at 12mo, DS4 was 13mo and DD2 didn't walk until 15mo (she was too busy climbing and crawling got her to the next "mountain" just as quickly).
DS6 is a "Talker", driven to explore the world through communication.
DS4 is a "Thinker", driven to logically understand the world.
DD2 is a "Doer", driven to learn through physical exploration and experimentation.
They all explore and understand things from different perspectives, they ask different questions based on those perspective and what they want to know, and usually they all eventually end up in the same place by taking completely different routes.
