Thanks for that, very helpful. It sounds a bit complicated like the US, we are probably a bit spoilt here in the UK as there aren't any rules really regarding children in bars. A good or bad thing I guess depending on your outlook on things but I like taking my son to the pub for a couple of drinks if the weather is nice.
Funny you mention being a CAMRA member, I am one also. Real ale and craft beer is really big here now.
Thanks again for your reply.