I just don't think Tor Browser is currently suited as a primary browser for most people. You lose things like staying logged into websites, you can't (or at least shouldn't) really add extensions like a good content blocker, you generally can't tweak or customize the browser to your liking, etc. Plus factor in things like the slow speeds, being blocked by websites, bombarded with captchas everywhere, etc, and it just becomes a harder and harder sell for a lot of average people.

Tor Browser's great and it absolutely has its need and purpose, I'm not trying to knock it for that at all because it works damn well for what it is and what it tries to do, but I just think its hard to be using as a primary browser and daily driver in its current form, at least for a lot of people.