Or so I was just told by my 10 year-old daughter. We had some stuff stored in the motorhome over the winter, so we drove over to the storage yard to grab a few items, and leave a few that we won't need for another month.
Her: "Dad, we should go camping soon!"
Me: "Well, honey, I'd love to, too, but when do you want to go?"
Her: "Oh, this weekend would be good."
Me: "Honey, your dad isn't the kind of person who needs a ton of time to get ready, but I need more than a day to get ready for the first trip of the season."
Her: "Oh, it's OK, I'll have everything packed by bedtime."
So...I guess it is possible to get everything ready on a moment's notice when one really wants to go.

Tent and food are packed. Need to grab the chairs and stove out of the camper and we're off after work tomorrow.
I'm really proud of her for taking ownership and figuring out all the details, and not just begging Mom and Dad to take her camping.