Well, people who don't learn a different language from their own are certainly "lazy" but this laziness includes the majority of humanity. Moreover, this laziness has been the motor of nationalist feelings that world over.

"“Not everyone in China has perfect grasp of pinyin. If websites have pinyin names, it might actually be difficult for some people to figure out which letters to write,” she said. A string of numbers is easier to commit to memory than words in a foreign language."

IE, a read of the article shows how laziness actually generates a lot of the use of numbers in the contemporary Chinese Internet.

On a mass scale, the path of least resistance is a powerful shaper of society. Sure, you may personally put in the effort to learn digits and that extra language and so-forth. Just don't expect that to be what conditions the form of daily life.