While I can (and do) take my crafting to events, it isn't like that's the best, or even a particularly good, place to do them. If my major source of enjoyment at an event is going to be something I could do (perhaps better, and more easily) at home, why am I at the event? I don't have to be in a crowd of strangely dressed people to entertain myself!

One does not go to events to do things one can do better elsewhere. One goes to events to socialize, or communicate, or do things that you cannot do as well at home (like dance). The crafting, or game playing, or what have you are merely vehicles to carry you through to the other things.