You must provide valid information for the whois databases. Also when you register your domain name. Most people register it using there home address. Which is fine if you want. But if your running a business or plan on running a business. A physical address for that business would be better than having your home address viewable. not only that any who looks t your website can ultimately find out where you live because all that information is in the whois database. I recommend always using a business address.