Microsoft, Unix, fork and chopsticks

Microsoft Windows is like fork, more difficult to make, but easier to use. Unix is like chopsticks. Easier to make, but more difficult to use. Usually, you can only train one hand to use the chopsticks. Thus a right-handed person can only use his right hand to hold the chopsticks. given any two sticks, you can use them as a pair of chopsticks. But for the fork, you can use it with either hand. However, you cannot make you own fork easily.