Not Milk and Cereal but Milk with Cereal; Not Gonna Work
I love the design, I love the idea of having this myself.
So what’s the problem?
The massive difference in shelf lives between milk and cereal.
Where would it work?
McDonalds maybe, if they could move it consistently enough to not have to throw away perfectly good cereal because the milk has gone bad.
But if you’re at McDonalds for breakfast, you’re probably not looking for cereal.
Cool Idea Though; worthy of sharing.