Are you hungry for lunch? "I don't know..." what? you really aren't in tune enough with your stomach to decide whether or not you would like to eat something yet?
Which movie would you like to watch? "I don't know..."
Hmmm... "I don't know" sounds a lot to me like "I'd like to spend a few minutes alone in my room whilst I consider being a more communicative and sweet child"
It certainly sounds like they're not hungry and have no desire to see a movie! We did end up driving home from Wendy's once without a meal for the Teenager because he "didn't know" what he would like... (sorry to the two blog readers who are avoiding fast food... I'll try to be more considerate in the future)
Is it our fault as parents? Do we cause this by not being straightforward enough? I always wanted to offer my children choices - but they're not very good at making them. Ooops, wait, I just realized that comes directly from my DNA... I now look up menus online so that I don't take as long to decide at the restaurant. (no, I'm not kidding - it's saved my marriage... but THERE I was kidding) Could it be related to parental inability to just say what we mean? Should we be asking our toddlers if they need to "tinkle" or should we just come out and be scientific about it? Should we be super honest when leaving them at nursery and say we'll be back in two sweet hours or is it okay to say "I'll be right back" Is it possible that all of this indirect communication is related to my children's inability to answer a question?
Sorry - I'd expound some more, but I really have to make a trip to the euphemism :)