Because someday they will be adults and you will not be there to carry them. They need to know what to do when you are not there.
One of the cubs school mates has parents who do everything for him with the consequence that the poor boy does not know how to "grab a sandwich". To him that means calling his parent to call for a delivery.
Assembling a BLT is beyond him.
On the other side our cubs can all feed themselves by taking raw ingredients and turning them into a meal.
Let them come to you for knowledge and interaction. You are their parent.
The job of a parent is to rise the child into a functional, brave, self sufficient, kind hearted adult.
Yes there are lots of times when I am not there. I can also as a parent let them know what a dictionary is. If I don’t know the meaning, we can look together. Nowadays it’s all screen, screen, screen. . . do I want to train them to go to the computer for all their questions? I do not!
It’s not coddling to answer a question. They should come to you with questions! Part of the answer may be to teach them how to solve something, but, “look it up” is a brusque brushoff that shows you don’t care enough to answer.