There are people out there who don't know what to be thankful for

There are people out there who don't know what to be thankful for. Which really makes me sad. And on a day (more like week since it's been almost a week since thanksgiving) that you are supposed to be happy, it's really quite depressing that I'm thinking that way. That is the pessimistic streak in side me. On the other hand, it reminds me that I should be thankful for what I do have and not angry at what I don't. What do you think?