When speaking about social media, I often draw laughter when I say that I find it incredible that there are still parents out there who name their babies without first checking if the matching domain name is available. What they don't know is that I am only half-joking when I make that statement. Perhaps “incredible” is an exaggeration but I do maintain that you could do your child a great favor if you think ahead in this regard. I registered our two kids' domains when they were about 5-6 years old and was lucky myself to find them still being available. Yes, it is possible that .com as a top level domain will be more or less irrelevant when the time comes for them to “brand” themselves online as technology changes. Still, the expense of about $10 a year pales in comparison to all other investments parents make in their kids future and the rewards could be significant.
Case in point. In today's class when I said the above, one of my students came up and said that that was exactly what his dad did when he was born! His name “Zachary Campbell” is a common one as well but thanks to his dad's foresightedness, he now outranks others with the same name, even some semicelebrities.