Ok. All childhood I rode in a single speed bike where brakes were inside rear hub (not sure what is the name). Basically, turn pedals backwards and rear wheel locked.

Now I see V-brakes everywhere. And I'm not impressed with them. I have 4 bikes given to us, I did all kind of adjustments, lubed/checked cables, etc. Wheels trued, you name it. And I still have hard time locking wheels with those brakes. They require considerable effort to engage. OK with me, but my girls (11 and 6) definitely have problems operating them.

I got new bike for myself and it has disk brakes (cable). It's like day and night. I'm not racer, I don't care about weight. I definitely like disk brakes better. There is no comparison. They are easy to adjust, easy to operate. So why not disk brakes on all bikes??

I'm looking for casual/hybrid bike for my wife and I'm 100% set on going disk brakes. But I don't care about 20+ speeds. I want to get 8 speed IGH and disk brakes. I don't see any women-specific bikes like this (IGH + disk). Why not? And is it possible to install disk brakes on IGH hub?