Making paper helps children learn to reuse materials at home. Once they know how to make it, they can experiment with adding new ingredients to the paper.
This is a good video because she does not use a blender. I highly advise NOT using blenders because it is hard to explain to a child that the blades can chop off a finger — they understand, but they do not really get it. For now, the only chopping is to be done with a small, real knife that does not look like a toy.
Of course, you do not need a frame with the screen to dry the paper mush. Just find a way to stretch the paper over something to dry.
Homemade paper and ink make lovely gifts for other children, too. Perfect for childhood gifting rituals.