I found an article online published in October 2012 that says only 20% of web users rely on IE9, while a huge 38% rely on older versions of IE. Old IE6 is even gaining market share. Does this mean that html5 tools such as SVG graphics should be avoided for the time being?
I also note that w3schools report that only about 15% of their visitors use any version of IE, much as only about 30% of servers out there run Microsoft Exchange (although the latter is not something w3schools themselves say). Should I draw the obvious inferences from these statistics with regard to the relative software choices of knowledgeable computer users as opposed to non-knowledgeable computer users?
What I'm really focusing on is whether a website visitor who might, for example, have a Ph.D. in reptile brain anatomy but have trouble finding the power switch on her computer (a description that applies to nearly every potential website visitor) is going to be frustrated and discouraged by the use of things such as SVG graphics in a website I develop. I'm hoping people can give me some input.