My DS started walking fairly early - cruising from 9 months and walking by himself at 12 months, he's 14 months now, so technically that makes him a toddler, right? He's certainly got the attitude too - throwing a tantrum if he can't get what he wants, it lasts all of 5 seconds if he's suitably distracted though. But I thought all this didn't really happen until at least 18-24 months (the terrible two's). I know all kids are different, but the things I read about toddlers seem to point to them being older and understanding more, like letting them choose and explaining things to them. I feel like there must be an ocean of difference between my slightly over-1-year-old-was-a-baby-a-second-ago to a 2 year old, fully walking, mostly talking child!