Remember, once you are in word pad, you can change the size of the font to anything you want for easier reading. Computers will require less repair and technical support if they are routinely shut down for periods of time. Files will be saved if you shut down properly in order to turn off your machine. A computer that is turned off poses less of a security risk. The proper passwords are often required to open certain files once a computer is restarted.
Networked computers reconnect to the network once they are started.
Shutting down ensures access to these networks. The file server won't keep checking on a computer that is shut down. This reduces the load on the network that ties the computers and file servers together.