The problem is that not all involved in business travel have the luxury of flying during business hours. (Oh how I am looking forward to QF400 on Easter Monday, and a week on Sunday!)
I don't doubt that the vast majority of parents will be doing their best to keep the children entertained and quiet, but let's face it if we are to see a greater number of children in the lounge the best will in the world won't stop crying and general noise.
Don't get me wrong I think QF is doing the right thing in looking after families I just hope they build a soundproof shelter in the lounges!
I don't have any children....you won't be surprised to hear.
My preference would definitely be no kids in the J lounge as a compromise. That way families get to keep together and the business traveller gets his/her "sanctuary".