Can non-character CMs sign autograph books?

[Meghatron]

So I've never really understood the park character autograph book and DD has yet to show interest. Also, we've never even considered it on the ship because we can get signatures at our leisure in Disneyland.

However, we are pulling her from school for two weeks for the WBPC and are brainstorming extra things to enhance the educational aspect of the trip in a praxis way. It's also been important to us to teach our kids that magic is made by people, especially at Disney. So I thought we would get her a DCL autograph book and have her collect autographs, names, and countries where CMs are from (and pictures if they would let us) and then we look up all those places on her globe and learn facts about those countries.

But then it occurred to me that there might be some kind of restriction about CM interaction in that manner, like the rule that adult guests can't wear costumes in the parks unless they have tickets to the Halloween party. I can't imagine why they would restrict the CMs, but before I add this to our plans I wanted to see if anyone knew for sure.