It's because expectations play a large part in our lives. Socially, professionally and as parents. If we want to become an astronaut then believing this is possible and having our parents support that wish will not necessarily make us achieve our dream. It will however, push us as far in that direction as is possible.
Eating is no different. Believing that our children can eat anything and expecting them to do so can have a huge impact on their diets. As a child I ate everything from blue cheese to curry and so I assumed my boys would do the same. I appreciate that this does not guarantee success and that some children - for many reasons - have a lot more trouble accepting a wide variety of foods. However, I also meet a lot of parents who have limiting expectations about eating that are based on their personal experiences.
I have parents explain that their child gags when they try new foods but that's to be expected as so did they. Or parents who tell me that they were "picky" until they were an adult so it's logical that their child is the same.
And it's normal human behaviour to project our beliefs onto our children. None of us can escape. How many times do I catch myself about to be my mother?!! But we do need to be aware that when it comes to eating what we expect can alter what our children expect of themselves.
Blue cheese - tick. Curry - tick. Octopus tentacles - tick. Yes they can ...
What are your expectations for your child's eating. Is it something you've thought about?