They say that, unlike in my day, kids today can't go to college, learn a profession, and stick with it for 30 years. They say that change is coming so quickly that a college preparation will only last a few years, that most successful kids today will, in effect, be forced to make what amounts to a career change every 4 or 5 years. So they say.
If they be right, isn't a knowledge of linux a substantive advantage to today's kids? The Gates' people mostly wait around for someone to develop a program that will perform a particular task. As those programs cost money, most Gates kids don't do too much experimenting. But linux kids have access to a world of (mostly) free programs and, as they are more familiar with the workings of their computers, an enhanced ability to develop their own programs.
In short, if they be right, linux kids can be expected to outperform Gates' kids as this century gets on. Do your kid a favor. Give him or her linux.