I used to like cereal, but don't eat much of it these days but that's just my preference. I wouldn't think corn flake cereal wouldn't be an issue as once the milk is poured on, it's difficult for them to hold together anyway. I agree with moderation and of course chewing well.
True, they are a type of food and just maybe because they need quite a bit of the day for our bodies to break down the bits small enough, so maybe just having them early is a good idea!