My experience is that there are very, very few of those kinds of people. I do not practice veganism anymore, but the number of pushy vegans I saw was vastly, vastly outnumbered by the number of non-vegans who felt the need to profess how moral their own decisions around food were.

Person: Whatcha' getting?

Me: I'm not totally sure.

Person: How about the steak?

Me: No, I don't really want that. (oh no.)

Person: Really? It's supposed to be really good.

Me: I hear that, but I don't think so, not this time.

Person: Why not?

Me: Well, I don't eat meat at all, actually.

Person: Oh yeah? Are you vegetarian or vegan?

Me: Vegan.

Person: Oh, I'm so sorry to hear that. The steaks is gonna be so great. Don't you just hate how pushy vegans are? They're always going on and on and on about...

This story happened over and over and over and over and over and over and over to me.

It was the same with not drinking, too. "Why did you only get a Pepsi?"