I have discovered that people fall into two categories when it comes to their food. Those who share, and those who don't. When we dine out with friends, we all take bites of each others meal. It's more like a family style dinner. However, one has to be careful about doing this. Some people are REALLY protective of their food!
So I think it is interesting that the new trend in restaurants is "family style" service. Bigger servings on plates that everyone shares. Some people with very defined food boundaries are going to have some trouble with this. That's where the before dinner cocktails come in handy!