When infants aren't held, they can become sick, even die. It's universally accepted that children need love, but at what age are people supposed to stop needing it? We never do. We need love in order to live happily, as much as we need oxygen in order to live at all.
Marianne Williamson (2009). “A Return to Love: Reflections on the Principles of A Course in Miracles”, p.22, Harper Collins