Hi Suzanne,
William and Charlie are (exactly
the same age.
Charlie has only just started to clap - last couple of weeks or so, and it started with the holding my hands and pushing them together, so William is probably on his way. He's probably just got better things to do
Charlie is not crawling, either, and is making no attempt to, but I'm not worried, as Melissa said, it all evens out in the end.
He's got no teeth yet, either