Does being vegetarian restricts you in some ways?

Vegetarians are a pain in the ***. I will not go to restaurants with them, they har the staff, asking hundreds of questions, and then complaining because there's nothing for them to eat. Or flat out refuse to go where I want to go and I always have to go to some creepy smelly Vegetarian Thai place (the same one every time). When the reality is that they surely consume some level of meat products on a regular basis. There's gotta be a little beef in the broth. Besides, who could be vegetarian as long as bacon exists?