Home cooking the old fashioned way

I'm at a loss to understand why foods go in and out of fashion.  It seems that people get sick of one thing, then go on to the next.  I'm the opposite, if I like something, I like it forever.  Is the TV program Masterchef only in Australia or is it in other countries as well?  Here in Australia, it's revolutionised the way people cook and has made cooking popular again.  I think that is a