Art is about questioning what you're seeing; how you react to it, relate to it, experience it.
Art is a quest for a question that is interesting to myself - the artist - or someone else - the viewer.
In art (Art), the question can remain as a question. In (art,) design or craft on the other hand the question is already explained; it's about accepting what you're seeing and/or about utility. Art 'outcomes' exist in their own right; they're not about serving us.
However, design or craft can become Art if it is presented in such a way that it entails a question/questioning:
Both at the V&A in Room 141
Art can be all around you, if to you it's seeing something wonderful. If it has to come in a frame or live in a museum, then you won't acknowledge that 'wonderful' something you see elsewhere.
It's generally accepted that a sign of a prosperous and healthy society is to have a place for art; in my view, a sign of a vibrant society is to have a place for Art.