If you are a typical person in the US or elsewhere, you likely have only really used 1 search engine in your adult life, Google. Restated, most people under 40 have only known Google. Yes there is now Microsoft Bing. But in the US estimates are that only some 5% of users have tried it. Bing’s main use seems to be inside Microsoft, to analyse MS Office documents and hotmail, to feed the results into MS’s ad system. Yes, there are the search engines Duck Duck Go, China has Baidu and Russia has a search engine. But the basic story remains Google globally.