What's with the 'Von Trapps'?

For the past few days, I've been noticing a lot of 'Von Trapp' families around, especially in the heartlands. In case you don't know who the Von Trapps are, stop living under a rock and go watch The Sound of Music! And no, I did not see families riding bicycles through parks singing "doe a deer, a female deer" but I saw LOTS of families dressed in what I believe used to be their curtains.

Do you remember the scene in the musical where Maria suddenly gets inspired to make the Von Trapp children new clothes out of the curtains in her room, and the next day all of them were dressed in clothes of the same colour? I'm starting to believe that a lot of families in our little island did the same but why the sudden fad?

Hopefully some of you might have noticed the Von Trapp families lately and if you happen to know the reason behind this... phenomenon, please enlighten me.

Moving on to more important news, I'll let the video speak for itself. Just forward the clip to 2:55 and watch it from there. I know the quality sucks and the volume's pretty screwed but it's the only one I could find.