It's fine.

I also remembered that I hate touching my mouse, and I prefer to keep my ring finger on "page down" when reading on a computer. Having to physically lift my hand, move it to the mouse, find the cursor on the screen, aim it at "next page" or whatever then click, and if I misfire... start over. This really breaks my flow and is quite disruptive.

I know I'm not the only one who cares about stuff like this.