Hhrmmnn, I disagree.
I clipped one wing while they were only about six weeks old. So if they got out of the coop, I would have a better chance in catching them before they flew too far. Our neighbors have vicious dogs. I really can’t take the chance.
They are now flying pretty well, but only when my dogs startle them.
I’m not saying to do it forever, just while they are young so they can more easily learn where home is.