You probably saw the message "Embedding disabled by request". That means that the person who uploaded it on YouTube does not allow other people to embed the video elsewhere, like on this forum.
So, it wasn't silly of you, luckymom!
What it just means is that, which you figured out already, you just have to click again on it and it will take you to YouTube to watch it.
I think Kyles Mom can see it because she had watched it on YouTube and the video is now cached on her computer memory.