my DS is exactly the same, he is 3 and hates walking most of the time, he will run in front of us and just stop practically tripping us up when he wants to be carried ! he says his legs are broken and he can't walk haha if we can distract him long enough he will go running off again but usually we end up carrying him, he is pretty persistent !

his 5 year old sister is completely the opposite and never did this, guess they are all different !