It happened!
At 6 and a half, we finally have our first lost tooth!
It has been loose for months, and really ramped up the last few weeks. Tom wiggled it at Thanksgiving and declared it lose enough he would have pulled it as a child. However it seems like E takes after his mama a bit, and had no interest in pulling it. He was wiggling it a bunch with his tongue, and when he woke up this morning it was half falling out of his mouth.