do you realize what you've done? xP
Brace yourself for the global warming argument.
Now, I'm always for a bicycle. It's a healthy means of transport (well in one sense...) plus it's fun. Animals though, I stand against. If you utter something like that again I just may have to throw red paint on you.
Seriously though, while things like subsistence farming and giving up gas guzzling machines for something more tranquil might idealistic, that's all it is. It's just not human nature (the race as a whole) to suffer the most minor inconveniences for the sake of the greater good. And having to grow your own produce is no minor inconvenience, I can tell you that.
As a whole we are just too plain lazy (heck, I'm a lazy guy individually...)
As for me adapting to certain changes. Well it really depends on how deep it goes. Are you talking about something minor like recycling my junk or riding my bike to work?
Or something possibly harder like having our computers on for only x hours everyday?
Or maybe a drastic change like digging caves and living in them?
Also, you would need to give me a better reason to change my ways other than to satisfy somebody's sentiment for the "gold old days"