I was going to comment on the same point, swalker... I can't believe how that 70-plus year old elder was put on the spot like that. I don't recall the WTS ever indicating that all meeting preparation had to be done as a family. They encouraged a family study every week--and this guy was already doing that. I'd have loved to hear that brother stop the COOT dude and ask him...
VERSION #1:
"Excuse me, brother, have you ever been married?"
"Well, no, I haven't."
"I see. So then would it be fair to say that you don't understand what married life is like--and why studying for every single meeting together might be a difficult burden for a couple?"
"Well, er, um...heh heh.."(cough cough cough)
VERSION #2:
"Excuse me, brother, have you ever been married?"
"Yes, I'm married."
"Well, do you always study for every single meeting with your wife? And remember, Jehovah is listening."
"Well, er, um..heh heh..let's just say I'm studying with her every chance I get."
"Well it looks like you have something to work on, doesn't it???"