Sony lanz Playstation network in 2006. People enrolled en masse and everyone chose a PSN name as their online identificationHowever, many seem not to have realized that this name will be permanent, since Sony refused to allow you to change your PlayStation Network name.
How to change your PSN name
As detailed in the PlayStation blog, you can change the name of your PSN on your PS4 or through a web browser.
To change your PSN name on your PS4, go toConfiguration, then selectAccount administration> Account information> Profile> Online identification.Enter a new PSN name of your choice (or one of the suggestions) and then follow the on-screen prompts to complete the change.