[johnnyRose]

Plenty of reasons. The most obvious use that comes to mind is to avert government censorship. Then there are whistleblowers. There are more reasons to desire anonymity than illegal activity.

Edit: also, ISPs can sell your browsing information now: https://www.usatoday.com/story/tech/news/2017/04/04/isps-can...

[yters]

Don't those governments just block Tor?

[KnMn]

You can use the Tor network through bridge nodes and in fact the Tor Browser Bundle will ask you if you need to connect this way on first run.