How old were your kids when you stopped reading picture books to them before bed?

Like the title says, how old were your kids when you stopped reading picture books to them at night?

And what was your favorite picture book to read to them?

EDIT: Let me clarify why I'm asking this question because I feel like people might be getting the wrong idea ahaha. I'm not asking to see when I can stop reading to my kid! I've written a couple of picture books and would love to get them published one day. I was just trying to figure out if the topic of my picture books were appropriate for the age group I was targeting (I was targeting around ages 4-8). Thank you!