Kids forget that XP was far buggier and had many issues when it first launched....oh that is right they weren't computer users they were diaper users.
Seven is great OS, it is a great successor to XP in every way. Vista was a failure, but it also introduced a ton of stuff that Microsoft wanted to be the new standard.
Kids forget and don't have the brain power to understand Microsoft OS are written so that they can be used on almost any combination of hardware that is out there. Unlike Mac OS. Google's Andriod suffers many of the same issues Windows suffers because of this fact.
8 is interesting, but as a avid gamer and a power user at work; I'm not to fond of the apparent touch and tablet focus in the OS.