Emma Watson, though, is in demand for selfies with fans whenever she's seen out and about, just living. She isn't fond of the practice. It's not that, she's tired of being accosted when all she wants is a macchiato and a croissant. As she explained it's a matter of data. She told Vanity Fair. "If someone takes a photograph of me and posts it, within two seconds they've created a marker of exactly where I am within 10 meters. They can see what I'm wearing and who I'm with.