I just hugged my 17-yo son goodnight. It was a good hug. We always tell each other "I love you." I hugged him at drop-offs in elementary school and other parents lamented "I wish my kids hugged me." I know every kid is different, but our kids hug us because we always hugged them. That's the secret.
@danielpunkass You also excited for them to head off into the big world (presumably college) but at the same time dreading them heading off into the big world? I might need to see a doc for some happy pills come August, I suspect I'm going to be a mess.