Not sure I would want any of my children anywhere near a Weatherspoons.
I'd have thought it was a pretty good pub to bring chidren to: it's cheap to cater for them, there are a lot of other families that eat in there, and it's refreshingly devoid of precious middle-class dingoes who stridently insist their human rights are being undermined if they can't eat their Sunday lunch in an environment composed exclusively of others in their socio-economic group. Those are the types I'd be worried about exposing children to.