Am I the only one with a fearless and careless 18 month old DAUGHTER?

Every time I take my daughter to the park/playground, I swear she is the only toddler there that is social with anyone she meets. There are always little girls her age there and she is always going up to them and trying to play and talk to them and they're all so shy and walk away. And I always see other toddlers that are always so careful when they go down the slide or play on something else but my daughter never ever thinks twice about doing anything, she's always in a hurry and is never cautious about anything! Is this normal? I mean I would expect this from 2-4 year old BOYS but not from my 1 year old daughter!