When my son Felix was a baby, his muscle tone was so low that he couldn’t hold up his head. He and I spent so much time at paediatric therapy or shuttling to different specialists, trying to understand the root of his floppiness, that we barely got a chance to socialise. I couldn't bother worrying about finding friends for Felix. I all but forgot about my own. So when the opportunity arose to invite some young families over for a gathering in honour of mutual friends, I grabbed at it.