In the book Cosmic by Frank Boyce, the main character is often confused for a grown up because he is so tall.  If I were a grownup for a day I would drive to the mall and go on a shopping spree. Eventually, I would drive to the beach and stay at my beach house. Finally, I would go to the movies at 12:00 and stay at a fancy hotel. Once I had all my fun, I would have to go to work. No fun. Other things  I have to deal with are that I would have to pay bills and have to go to the grocery store to buy food. Being a grown-up for one day might not be too bad but, if I had be a grownup for a long time well, that’s a different story.