The rates are the reasons why even if you drop the child bar you will still not get many. Very few couples with kids can afford to B&B these days, apart from the fact that not many couples with kids even holiday in the UK! Up here in the highlands where everybody and his next door neighbour do B&B they are all feeling the pinch The B&Bs are half empty and the roads are full of motor homes. Add up what it would cost a couple with one or even two kids to stay in that B&B you fancy for a week, and then look at what they could get in Spain Portugal or Turkey for that money. I'm not saying the rates are OTT they're par for the course, it's just a matter of economics.
Giok