Children when they are born are so pure and so close to the light, that in a way God sends them to us to help us and get us back closer to God. To connect with the divinity within us. But the reasoning world says we are here to serve our children and we expect them to do things for us when we are old. But then they have their children and busy themselves proving for the divine a home in the earth/material plane.

The only time children help us is when they are with us, bringing us joy, cheer, laughter, hugs, little gifts made with their little hands, little steps they take with their little feet. Main thing is they teach us to slow down in life since they can't take giant strides like adults. By slowing down we appreciate the world better, instead carrying them around and making them burden us and never teaching them to walk on their own.