I became a vegetarian 18 years ago, at age 15. (Gosh, was it so long ago?) My parents weren't too thrilled, but decided it was "just a phase" and they'd humor me while I went through it.
These days, my mom rarely eats meat either! Not sure about my dad, but I think he eats vegtarian meals quite often as well. So, the tide has turned! LOL :)