"mature"
If by "mature" you mean "designed to make it seem like you need less knowledge than you actually do" . . .
Well, I guess it doesn't really matter if someone's able to copy your credit card numbers from your online transactions, use your computer to send spam to thousands of people, and set up an FTP archive of kiddie porn on your hard drive, as long as everything still looks like it's working according to the sleek new Vista UI.