I am geared up for having DD on reins and will make a very swift exit if they muck about, I like doing things with them but don't drag it out if they are being a handful. I'd rather be there for 10 mins than not go at all. We can wander round the rest of the Tate anyway.
The only bit that I'm not sure about is the cows head, is it decomposing in the box and is it easy to avoid? I don't think it would scare the children but I don't want it too in their faces IYSWIM.
Is the Skull in a room where you have to queue? We'll avoid that part if it is.
I was going to take the DC's (5 & 3) in May. I figure they're thrilled when they see a dead mouse on the path so a dead shark will be the highlight of their year.
Obviously I don't anticipate being able to dawdle and take in the art for very long with the dc's in tow but it'll make a change to the local park. Someone I've never made it to Tate Modern before so I'm rather looking forward to finally getting there.
AFAIK the skull is only there for the first couple of months. Although it might be too busy for the dc's to see that part.