The Internet really has changed in the last decade. If you look back 10 years from now, in 2005, basically everyone used a computer to access the Internet. The only real difference came about from the Internet browser, but ultimately, Internet access proved a similar experience across the board. Then, The Apple iPhone came out in 2007 (while not the first touch screen smartphone, the device with the biggest impact), followed quickly by a slew of other mobile devices, tablets, the Android operating system, each of which utilizes a different screen size. With the dozens of variables at play now, website design is now very different than 10 years earlier.
Frustration in Adjusting
Have you ever opened up a website, only to pinch, scroll and adjust the size of your viewing window in order to see the content? It is frustrating, and unless you really need to use the particular website, chances are you just backed out and looked for a similar website with proper formatting. This proper formatting is due to responsive web design. The website responds to how the device displays a website. Nowadays, it is more than just the Internet browser. It is the device, the screen size, the browser, the operating system and several other variables. Attempting to create a different page for every single variable is impossible, but the responsive web design is able to handle all of this.