Hahaha I agree with you! If all I was doing was reading articles then you would be quite right; I wouldn't need a MacBook for that and even an iPad would suffice (even though they didn't exist then). I also got into heavy photoshopping, building 3D Models with Google Sketchup, and using many applications in the Adoble suite as well as some light video editing and some emulation for gaming. Part of the reason why I feel the Mac was so beneficial to me though, besides the articles, is both that I didn't have to contend with virus's and the general slowdown overtime of a PC but also that I was able to make better presentations projects by using Mac only apps such as Keynote.
I'm not going to lie, I am a teenager! But this isn't nonsense. This purchase allowed me to greatly increase my knowledge; it isn't without a doubt in my mind that without this purchase I wouldn't have the 4.2 GPA I have today because of what I was able to expose myself to and the things I was able to create.
This is the only sensible reply to date and agree.
Buy the MacBook Air and let your child grow with latest safest tool.
I'm running Windows XP using Parallels on my MacBook Air. Microsoft has started supporting XP again with updates. I've had 2 updates from Microsoft over the last couple of months.
I'm only using XP for one program the rest of the time it's Apple all the way.
The other great thing with Apple products you can monitor your children's Apple devices anywhere in the world including what they are viewing at any time, but be open about your monitoring and why you are doing this with your children.