Well I think it's healthy to come at things from different angles, I've read the exact same views as you've expressed from other children’s performers, so your not alone.
However I also read a very interesting post from a 12 year old that reckoned that levitation had to be among the strongest effect for kids shows, I also have 3 children from 8 up all of whom think levitation is really cool.
Then I read numerous posts from experienced children’s workers who never seem to use these tricks and some even speak against using them, like yourself.
I'm trying to figure out why. I'm wondering if maybe it's to do with the presentation of these effects or if they really just don't work for kids. However I can't accept the Mary Poppins argument as if you take it to it's logical conclusion, it just doesn't work. As I did in part in my last post. In fact if we say that kids won't be impressed if it's something they’ve already seen on TV, we would be in real trouble as we can't compete with the amazing special effects achieved in many children’s films nowadays.
I'm not trying to be disrespectful of your obvious experience I'm just not much good at accepting things at face value, hope that's ok
