I've never met so many vegetarians/semi-vegetarians in my life! I deeply understand the benefits ---- health/ethical/environmental. And from what I've heard, vegetarians even 'make better lovers'! (Does all that chlorophyll really get their hormones going?)
But for me, it's still difficult to imagine giving up those lovely foods forever. Letting myself eat whatever I like is the lifestyle I want to have.
It's much easier to knit.