I believe children are allowed. I have a son, but I would never take him there. Stuff does go on that I would not want him to see!

It’s more dangerous crossing road in Pattaya

I think some massage parlors do. At least from my experience (you can find the outlet’s name in my review); where the masseuse insisted on providing sex instead of massaging. I paid the massage fee and got out of there, so I’m not sure how much they charge. I can’t comment on the LBs as I’d never had any experience with them.

rates keep on dropping, would advise you not to exchange on airport, local places often have a slight better rate. compare a few of them before paying up, many of them around under which some scammers.