Yes, Richard Freeman is right, yoga does ruin your life.
I can't sit "normally" for more than an hour straight, and eventually have to resolve in sitting cross-legged on my chair (yes, sometimes even when I am out in a restaurant).
I find my old jeans too "tight" and restrict me from breathing properly. Solution? Jeggings. Or that I simply live in my yoga pants. Comfort is my #1 priority now.
This is also why I own a pair of Vibrams.