I was delighted to see a number of children at Swancon, ranging from new-born to teens. The organisers are to be commended on providing play space and child centered activities - from spaceship building to story telling. Of course, when children are present there are tears, squabbles and the occasional bit of attention seeking - by nature children are noisy and distracting - but these are the fans of the future. We should encourage their participation because in ten or twenty years they will be the ones reading and writing speculative fiction - and organising cons.
Besides one of the highlights for me - although probably not for his parents - was when the small son of one of the panelists announced with great delight that his Daddy was on the panel and ran up to "say hi to my Daddy".