Meg Rosoff said this quote

How had he got here? Only a few minutes ago he'd been a kid, riding his bike to school, collecting comics, doing homework and watching TV. Over the years, a few trappings of adulthood had insinuated themselves into his life withoutmaking significant inroads. Real adult life seemed to exist over there, somewhere as distant and unreachable as Uranus. He had no idea how people crossed over to this place, or why - the demands of being grown up seemed exhausting. Look how I work all the time. See my silky girlfriend. Watch me exchange money for food. Admire my blood pressure.