When I got home from work yesterday, Noah, our youngest at age 7, came out to greet me. He was happy that I was finally home so he met me in the driveway and gave me a big hug.

He doesn’t do this often anymore, and someday—probably soon—he’ll stop altogether; his two older brothers don’t do it at all anymore.

There will be a final time you pick up your kid, or tuck them in, or read them a book, or hug them in your driveway when you get home. It’s normal, but it’s also a bit sad, so enjoy those moments while you can because when they stop, they leave a little hole in your heart.