Someone really uses that??

I personally don't know any less convenient way to scroll (ok, except clicking on the scrollbar arrows).

And if mice with the scroll wheel weren't widely available at the Windows 95 launch, they became shortly after. You've also always been able to scroll with the keyboard, btw.

Scrollbars became disdained with the modern smartphones, because some ##### thought that touch scrolling was enough.

Except that without a scrollbar it's extremely hard to figure out how long the page you're considering to read is.

And, rather than scroll wheels, I love and always use chirals on laptops, but both with them and with touchscreens, to make big jumps in a document a scrollbar is often more convenient.