Of course, not every weekend is unofficially dedicated to burgers and steaks.
And your mileage may vary, depending on the makeup of your particular social circle. Admittedly, some people are freaked by the idea that not everyone makes the same choices they do.
But my impression is that the majority of those around here are OK if vegetarians do their own thing and keep the preaching to a minimum.
Not sure you would encounter the same live-and-let-live vibe in parts of Texas, the Midwest, the South and elsewhere.