Steaming games is even more expensive than buying a powerful PC . It will stay that forever until the world united under one ruler and the world united under one system and one Internet Policy and Internet cable spread around the world. Probably another 50 years or 100 years.
I am not joking. In my country people rarely has 10 Mb/s and the lag response is Ultra mega slow not including super slow upload time and unstable speed . Internet is still super expensive, and Google and Xcloud are targeting no one as consumer, people who has money will probably just play and buy local hardware , and people who don't have money will just wait and buy second cheap consoles or PC.