Comment by IshKebab

All of the major commercial OS vendors are trying to do that. Apple started it with iOS. Google have gradually been tightening the net. Microsoft are furthest away but they have the longest legacy of freedom so they the furthest to go.

Obviously they aren't going to publicly say that's their intent, but you don't have to be a genius to read between the lines.

As for why... money and power are pretty big motivators.