Ziddina,
I really must learn not to post at work!
I've had two rounds of depression in my life and you are correct, it was not the least use for anyone to tell me to decide to be happy. Or to "snap out of it", or all the other versions.
But there is a big difference between deciding to be happy (which I can intermittently do now) and telling someone to do so (which as a work first-aider who often gets the ones with anxiety, depression etc, I would never do).
In most cases, it indicated a very shallow thought process and total lack of empathy for others.. Sorry it sounded like that
Retro