DD sometimes seems unable to fully enjoy whatever we're doing because there is often something else she wants. Today was a good example. I took her to a film, but once there, she was desperate for popcorn/drink. After the movie was over, she was intent on searching the lobby to see if there were any "toys" to buy. We walked home along the river, and were enjoying watching the passing boats, and the street performers. But, soon she spotted a playground and that became the all consuming focus. On the way to the playground, there was an ice cream van and that became the next thing she was intent upon after a quick play.
Now, I like to do special/nice things for her, and given the chance, might even suggest/offer some of the things she pesters about. But, when I am constantly badgered, it gets old. I have no problem saying, and meaning "no", and she accepts it without too much grumbling. But it's as if she can't enjoy where she is/what she's doing because she's distracted by whatever else catches her fancy that she wants to do/have next. It also seems that whatever we do, it's not enough. She's always angling for more.
Is this behaviour typical of a curious, lively nearly 6 year old, or behaviour that needs addressing? If it needs attention, what do you suggest?