If you are looking for a fun family day out that caters for the kids then I would suggest Druzillas would be a better choice... do bare in mind that you may get wet if it rains though!!
I am sorry to sound argumentative but this all seems so indicative of the 'modern' football fan.
To be honest if after a few games the kids are just going 'cos they get sweets and free flags etc they won't stay for long. Everyone on here can remember the feeling of unbelievable excitement when their dads took you to those first games... and it was not because we got sweets and sat in the...
Although I sympathise at the end of the day its a football match not an afternoon at Druzillas. As for rain short of playing indoors I don't know what else the club can do. Tony Bloom is a powerful man but he does not control the wind!