Only the BSD distributions allow you to create a user that has no access to root.
You can always remove/ disable sudo and make everything a prompt for a login when using root.
When I first installed Ubuntu, it asks to create an initial user. this user has admin privileges. Since Ubuntu doesn't actually use root and gives the admin priviliges to the initial user, should I use this initial user?
In Ubuntu, you use sudo for anything requiring privileges correct? Should I create another account for everyday use that has no admin privileges instead? I kinda new to Ubuntu. Also, please correct me if any of this is wrong.

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic