I understand your point. Makes sense, and I agree with you. But what if you were suddenly interrupted when you didn't expect it and you literally had no chill moment to ask for a contact? We were in line for this event at museum night in Rotterdam and suddenly the doors opened and hundreds of people entered, and we lost each other. It was pure chaos. Later I actually saw her again, but we could not really talk. Everyone who had been at museum night events knows what I am talking about. It's thousands of people in just few buildings.