My 2 yr old copies daddy, so he'll only use the exact racket in my hand. That's the RF 97, strung with gut/poly and has silicone in the handle. He takes mine and I get another one out of the bag. He then wants to switch racket to the one I'm using at that very moment.
Biggest difference is, I have a 1HBH, he has a 2HBH now, and he drags the racket on the floor as he's walking . He's not yet 3 ft tall, so that's expected.